Backward vs Backwards

Quick Answer

The fastest way to know which spelling to use.

The difference between backward and backwards comes down primarily to geography and parts of speech.

If you are writing for an audience in the United States, the standard spelling is backward (without the 's'), used for both adjectives and adverbs. If you are writing for an audience in the United Kingdom, the standard adverbial spelling is backwards (with an 's'), though Britons also use "backward" as an adjective.

Both words refer to moving or looking in the reverse direction. Neither spelling is grammatically incorrect, but using the wrong one for your target region or part of speech can look out of place.

Backward vs Backwards at a Glance

A side-by-side breakdown of the key differences.

Feature	Airplane (US)	Aeroplane (UK)
Standard Region	United States	United Kingdom
Spelling	B-A-C-K-W-A-R-D	B-A-C-K-W-A-R-D-S
Syllable Count	2 (BACK-ward)	2 (BACK-wards)
Part of Speech	Adjective & Adverb	Adverb (Adjective is 'backward')
Meaning	Reverse direction	Reverse direction

American English: Backward

How the word is used in the United States.

In the United States, "backward" is the universally accepted spelling for both the adjective and the adverb. It is used by major American publishers, schools, and everyday speakers. The spelling drops the "s" entirely, favoring a streamlined approach to directional adverbs.

Industry Standard

American style guides like the Associated Press (AP) and the Chicago Manual of Style exclusively use "backward" for all contexts, including technology (e.g., backward compatibility).

Media and Publishing

Major publications like The New York Times and The Wall Street Journal strictly follow the "backward" spelling without the 's'.

British English: Backwards

How the word is used in the United Kingdom.

In the United Kingdom, "backwards" is the traditional and standard spelling for the adverb. It retains the "s" at the end, matching other British directional adverbs like 'towards' and 'forwards'. However, when used as an adjective, British English drops the 's' and uses "backward".

Cultural Presence

The spelling is standard in British literature and speech, often used to describe physical movement in reverse.

Modern Usage

While Britons say someone is walking "backwards", they would describe a "backward glance" or a "backward child" without the 's'.

What Do Both Words Mean?

The definition remains exactly the same.

Despite the spelling and part-of-speech differences, both "backward" and "backwards" mean exactly the same thing in motion. They refer to moving, looking, or facing in the direction opposite to normal or forward.

Core Definition

In a direction or position to the rear; returning the way one came.

Figurative Meaning

Both can also mean regressing or making progress in the wrong direction (e.g., "taking a step backward/backwards").

American English Usage

How Americans naturally use the word today.

In the US, "backward" is used in almost every context, from casual conversation to technical software manuals. While the word "reverse" is often used for vehicles, "backward" applies to people, progress, and technology.

Casual Conversation

"He walked backward to keep his eyes on the door."

Technical Writing

"The new software is backward compatible with older file formats."

Sports and Fitness

"The gymnast performed a backward roll on the mat."

Figurative Context

"Without proper funding, the project took a backward step."

British English Usage

How Britons naturally use the word today.

In the UK, "backwards" holds its ground in movement, literature, and formal contexts. However, Britons strictly use "backward" (no 's') when the word acts as an adjective.

Literature and Media

"She glanced backwards to see if she was being followed."

Everyday Conversation

"The car rolled backwards down the hill."

Adjective Usage

"He gave a backward glance before leaving the room."

Idiomatic Expression

"You're bending over backwards to please them."

Which Spelling Should You Use?

Deciding based on your audience.

The decision is based on geography and grammar. If you are writing for an American audience, always use "backward." If you are writing for a British audience, use "backwards" for adverbs (movement) and "backward" for adjectives.

Choose "Backward" if:

You are writing for a US-based publisher, using it as an adjective in the UK, or following standard American English conventions.

Choose "Backwards" if:

You are using it as an adverb in the UK, Australia, or New Zealand, describing the action of moving in reverse.

Formal and Professional Writing

What to do in business and academic contexts.

In highly formal writing, the safest approach is to match the regional style guide and ensure you are using the correct part of speech. Unlike some words where a broader term can be used, there is no universal alternative.

Business Contracts

International technology contracts often use "backward compatible" without the 's', aligning with global tech industry standards.

Academic Research

Scientific papers must adhere to the journal's specific style guide, whether APA (US, 'backward') or a UK equivalent ('backwards' for adverbs).

Pronunciation

The spelling change slightly affects how the word is spoken.

The spelling difference isn't just visual; the addition of the 's' in British English adds a subtle 'z' sound to the end of the word.

Word	IPA	Syllables
Airplane (US)	/ˈbæk.wərd/	2 (BACK-ward)
Aeroplane (UK)	/ˈbæk.wədz/	2 (BACK-wards)

Because the American version drops the 's,' speakers end the word on a hard 'd' sound. The British version adds a voiced 's' (a 'z' sound) at the end, creating a slightly softer finish.

Spelling Difference

A visual breakdown of the letters.

The core difference is the presence of the letter "s" at the very end of the word.

Backward

Backwards

The American version simply ends in 'd', functioning as both an adjective and adverb. The British version adds an 's' for the adverbial form, a common feature in traditional British English directional words.

Why Are the Spellings Different?

The history behind the transatlantic split.

1. The Old English Roots

The word originates from the Old English 'bæc' (back) and 'weard' (turned toward). Originally, it functioned primarily as an adjective meaning 'directed behind.'

2. The Adverbial 'S'

In Middle English, it became common to add an 's' to directional words to form adverbs (like towards, forwards, and backwards). This practice became deeply entrenched in British English.

3. The American Simplification

In the 18th and 19th centuries, American lexicographers like Noah Webster began standardizing and simplifying the language. They favored dropping the adverbial 's', adopting 'backward' as both the adjective and the adverb to streamline American grammar.

Synonyms, Antonyms & Rhyming Words

Words related to, opposite of, and sounding like backward/backwards.

Synonyms (Similar Meaning)

Antonyms (Opposite Meaning)

Rhyming Words (Sound Matches)

Learn More Rhyming Words

Example Sentences

See how both words function in original sentences.

Here are 30 original sentences using the American spelling, "backward."

He took a step backward to admire the painting.
The software update is fully backward compatible.
She counted backward from ten to calm her nerves.
The door swung backward on its hinges.
He gave a backward glance before leaving the room.
The truck rolled backward down the steep hill.
Without funding, the research took a backward step.
The gymnast performed a backward somersault.
She walked backward to keep her eyes on the approaching dog.
The clock's hands moved backward in the film.
He wore his baseball cap backward.
The country's economy was moving backward instead of forward.
She did a backward dive off the starting block.
The old computer system felt like a backward step in efficiency.
He fell backward onto the soft grass.
The movie plays the scene in backward motion.
A backward approach rarely solves a forward-looking problem.
She glanced backward to ensure no one was following.
The new policy is a backward move for civil rights.
He looked backward at his childhood with fondness.
The vehicle has a backward facing camera.
She bent backward to limbo under the bar.
The text was printed backward on the t-shirt.
He took a backward roll on the mats.
The app supports backward synchronization with older devices.
She stretched her arms backward.
The helicopter flew backward to align with the landing pad.
He did a backward flip off the trampoline.
Their logic was entirely backward.
The river flows backward during high tide.

Here are 30 original sentences using the British spelling, "backwards."

He took a step backwards to admire the painting.
She counted backwards from ten to calm her nerves.
The door swung backwards on its hinges.
He gave a backward glance before leaving the room. (Note: Adjective form in UK)
The lorry rolled backwards down the steep hill.
Without funding, the research took a backward step. (Note: Adjective form in UK)
The gymnast performed a backward somersault. (Note: Adjective form in UK)
She walked backwards to keep her eyes on the approaching dog.
The clock's hands moved backwards in the film.
He wore his cap backwards.
The country's economy was moving backwards instead of forwards.
She did a backward dive off the starting block. (Note: Adjective form in UK)
The old computer system felt like a backward step in efficiency. (Note: Adjective form in UK)
He fell backwards onto the soft grass.
The movie plays the scene in backwards motion.
A backward approach rarely solves a forward-looking problem. (Note: Adjective form in UK)
She glanced backwards to ensure no one was following.
The new policy is a backward move for civil rights. (Note: Adjective form in UK)
He looked backwards at his childhood with fondness.
The vehicle has a backward facing camera. (Note: Adjective form in UK)
She bent backwards to limbo under the bar.
The text was printed backwards on the t-shirt.
He took a backward roll on the mats. (Note: Adjective form in UK)
The app supports backward synchronisation with older devices. (Note: Adjective form in UK)
She stretched her arms backwards.
The helicopter flew backwards to align with the landing pad.
He did a backward flip off the trampoline. (Note: Adjective form in UK)
Their logic was entirely backwards.
The river flows backwards during high tide.
You're bending over backwards to please them.

Backward in US English

Specific contexts, industry standards, and cultural data for the American spelling.

In the United States, "backward" is not just the linguistic standard; it is the technological and grammatical standard. American tech companies, regulators, and writers exclusively use this streamlined spelling.

Legal & Regulatory Definition

The Federal Communications Commission (FCC) and other US bodies use "backward" in their official documentation, such as when discussing "backward compatibility" in telecommunications.

Technology & Industry

American tech giants like Microsoft, Apple, and Google use "backward compatible" in their software documentation. They strictly avoid the 's' to maintain a consistent standard.

Pop Culture & Media

The spelling is cemented in American media, commonly appearing in news articles, sports commentary, and TV scripts when describing physical movement or regression.

Common American Phrases

• Backward compatible: Technology that works with older versions.
• Take a step backward: To regress.
• Backward glance: Looking behind oneself.
• Move backward: Physical reverse motion.

Backwards in UK English

Specific contexts, industry standards, and cultural data for the British spelling.

In the UK, "backwards" is the traditional, standard spelling for the adverb. While British tech firms may adopt "backward compatible" to align with global software norms, "backwards" remains the definitive adverbial term in British literature, media, and speech.

Legal & Regulatory Usage

In UK law and official documents, "backwards" is used for adverbial descriptions of movement (e.g., "the vehicle reversed backwards"). As an adjective, "backward" is used (e.g., "a backward step").

Media & Publications

The UK has a strong tradition of using the adverbial 's'. Publications like The Guardian and The Telegraph use "backwards" for motion and "backward" for adjectives.

Cultural & Literary Usage

The word appears in classic British literature and idioms, almost always with the 's' when describing movement, such as "bending over backwards."

Common British Phrases

• Bend over backwards: To make a great effort.
• Know backwards: To know something perfectly.
• Move backwards: Physical reverse motion.
• Backward glance: Looking behind oneself (Adjective).

Related Directional Vocabulary

Other words that differ in movement and direction.

US English	UK English	Meaning
Toward	Towards	In the direction of.
Forward	Forwards	In the direction ahead.
Upward	Upwards	In an ascending direction.
Downward	Downwards	In a descending direction.

Other US–UK Directional Differences

More words that change when you cross the pond.

Toward vs. Towards

Americans use "toward" without the 's', while Britons use "towards" with the 's'.

Forward vs. Forwards

The direction ahead is "forward" in the US and "forwards" (as an adverb) in the UK.

Upward vs. Upwards

Moving higher is "upward" in America and "upwards" in Britain.

Downward vs. Downwards

Moving lower is "downward" in the US and "downwards" in the UK.

Common Mistakes

Frequent errors writers make with these spellings.

Mixing spellings within the same document.

✓ Pick one regional standard and stick to it.

Why: Writing "He walked backward, then looked backwards" confuses the reader and breaks the consistency of your text.

Using "backwards" as an adjective in British English.

✓ Use "backward" for adjectives in the UK.

Why: In the UK, you take a "backward glance" (adjective) but walk "backwards" (adverb).

Using "backwards" in an American tech document.

✓ Use "backward" for US-based journals and software.

Why: American tech standards strictly use "backward compatible" without the 's'.

Hyphenating the words ("back-ward").

✓ Always use a single, unhyphenated word.

Why: While early texts sometimes used a hyphen, modern English treats both as solid compound words.

Pronouncing "backwards" as "back-word."

✓ Pronounce it "BACK-wards."

Why: The 'ward' part is pronounced with a schwa sound (wərd or wədz), not like the word 'word'.

Assuming "backward" is only an American word.

✓ Recognize it as the correct UK adjective form.

Why: Some Britons think "backward" is purely an Americanism, but it is the standard adjective form in British English too.

Using "backward" as an adverb in UK casual writing when a specific adverb is needed.

✓ Use "backwards" for adverbs in the UK.

Why: While understood, "backwards" is the preferred adverbial spelling in British English.

Translating "backward compatible" to "backwards compatible" for a UK audience.

✓ Check the industry standard. Tech usually keeps "backward".

Why: Interestingly, even in the UK, the tech industry often uses the American "backward compatible" to maintain global software consistency.

Forgetting that Canada usually aligns with the US.

✓ Use "backward" for Canadian audiences.

Why: Despite being in the Commonwealth, Canadian English heavily favors American spellings for directional adverbs.

Confusing the direction with the fruit.

✓ Keep "backward/backwards" distinct from "blackberry."

Why: Autocorrect sometimes changes "backward" to "blackberry." This is a humorous but common typing error.

Writing for an International Audience

How to handle the split when writing globally.

If you are writing a blog, book, or manual for a global audience, you must pick a primary English standard. Most international organizations choose either US or UK English as their default and stick to it.

Pro Tip: Because of the dominance of the American technology sector, many global tech companies use "backward" (without the 's') for software documentation, even in the UK. However, if writing literature or general text for a Commonwealth audience, "backwards" is the expected standard.

Memory Tip

An easy way to remember which spelling belongs to which country.

If you struggle to remember the difference, use this simple association trick:

America = Backward

United Kingdom = Backwards

Notice the letter "s." The United Kingdom keeps the "s" on the end of "backwards," while America drops it entirely for "backward."

🎮 Mini Quiz

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Frequently Asked Questions

Quick answers to common questions.

Are 'backward' and 'backwards' pronounced the same way?

No, they are pronounced slightly differently. 'Backward' ends on a hard 'd' sound, while 'backwards' ends with a voiced 's' (a 'z' sound). However, both have two syllables.

Why does America use 'backward' instead of 'backwards'?

In the early 19th century, American lexicographer Noah Webster sought to simplify American spelling to make it distinct from British English. He favored dropping the adverbial 's' from directional words, leading to 'backward' becoming the standard for both adjectives and adverbs.

Is 'backwards' ever used in the United States?

It is sometimes used in informal or poetic contexts, but 'backward' is the undisputed standard in formal American English, especially in technical writing.

What about Canada and Australia? Which spelling do they use?

Canada generally follows the American spelling ('backward'). Australia and New Zealand follow British English and use 'backwards' for adverbs.

Is 'backward' an adjective or an adverb in the UK?

In British English, 'backward' (without the 's') is strictly used as an adjective (e.g., 'a backward glance'). 'Backwards' is used as the adverb (e.g., 'he walked backwards').

Which spelling is older, 'backward' or 'backwards'?

'Backward' is the older spelling, originating from Old English. The adverbial 's' was added later in Middle English, becoming the standard adverb form in the UK.

Should I use 'backward' or 'backwards' in academic writing?

You should match the spelling to the regional standard of your audience or publisher. If you are writing for an American journal, use 'backward'. For a British or Commonwealth journal, use 'backwards' for adverbs.

What is the prefix 'back-' derived from?

The word comes from the Old English 'bæc' (back) and 'weard' (turned toward).

Are there other words that follow this 'no s' vs 's' pattern?

Yes, there are many. Examples include 'toward/towards', 'forward/forwards', 'upward/upwards', and 'downward/downwards'.

Which word is more commonly used globally in the tech industry?

Because of the dominance of the American software industry, 'backward' (as in 'backward compatible') is recognized and used globally, even in British tech companies.