Labour vs Labor

Quick Answer

The fastest way to know which spelling to use.

The difference between labor and labour comes down entirely to geography.

If you are writing for an audience in the United States, the correct spelling is labor. If you are writing for an audience in the United Kingdom, Australia, or New Zealand, the correct spelling is labour.

Both words refer to the exact same thing: physical or mental work, the workforce, or the process of childbirth. Neither spelling is grammatically incorrect, but using the wrong one for your target region can look out of place.

Labour vs Labor at a Glance

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

Feature	Airplane (US)	Aeroplane (UK)
Standard Region	United States	United Kingdom
Spelling	L-A-B-O-R	L-A-B-O-U-R
Syllable Count	2 (LAY-ber)	2 (LAY-buh)
Origin	Americanized spelling	Latin via Old French
Meaning	Work or workforce	Work or workforce

American English: Labor

How the word is used in the United States.

In the United States, "labor" is the universally accepted spelling. It is used by the government, labor unions, and everyday speakers. The spelling drops the "u," favoring a simpler, more phonetic form aligned with Noah Webster's spelling reforms.

Industry Standard

American labor unions and the Department of Labor exclusively use the "labor" spelling in their manuals and regulations.

Media and Publishing

Major publications like The New York Times and The Wall Street Journal follow the "labor" spelling without exception.

British English: Labour

How the word is used in the United Kingdom.

In the United Kingdom, "labour" is the traditional and standard spelling. It retains the "u," honoring the word's Old French and Latin origins. It is used universally in media, literature, and politics.

Cultural Presence

The spelling is immortalized in British culture, most notably by the Labour Party, one of the UK's major political parties.

Modern Usage

Though casual speech is identical, formal British writing relies on "labour" rather than the American adaptation.

What Do Both Words Mean?

The definition remains exactly the same.

Despite the spelling difference, both "labor" and "labour" mean exactly the same thing. They refer to physical or mental work, the workforce as a whole, or the process of childbirth.

Core Definition

Physical or mental effort directed toward doing or making something.

Childbirth Context

The process by which the placenta separates from the uterus and is expelled, often referred to as "going into labor."

American English Usage

How Americans naturally use the word today.

In the US, "labor" is used in almost every context, from casual conversation to technical manuals. It applies to economic discussions, union negotiations, and medical settings.

Casual Conversation

"He did hours of manual labor on the construction site."

Technical Writing

"The Bureau of Labor Statistics released new employment data."

Political Contexts

"The labor union voted to authorize a strike."

Medical Context

"She went into labor at exactly 2:00 AM."

British English Usage

How Britons naturally use the word today.

In the UK, "labour" holds its ground in literature, formal writing, and everyday contexts. It applies to the workforce, the political party, and the medical event of childbirth.

Literature and Media

"The country's labour force is shrinking due to an aging population."

Everyday Conversation

"He was sent down for hard labour."

Hobbyist Contexts

"It was a real labour of love to restore the old car."

News and Journalism

"The Labour Party announced a new policy on workers' rights."

Which Spelling Should You Use?

Deciding based on your audience.

The decision is entirely context-driven. If you are writing an email to an American colleague, use "labor." If you are writing a postcard from London to your friends back in Britain, use "labour."

Choose "Labor" if:

You are writing for a US-based publisher, studying at an American school, or creating content primarily for an American audience.

Choose "Labour" if:

You are submitting to a UK journal, writing for a British audience, or following Commonwealth English standards.

Formal and Professional Writing

What to do in business and academic contexts.

In highly formal writing, the safest approach is to match the regional standard of your publisher. In economics and politics, using the correct regional spelling builds credibility.

Business Contracts

International labor contracts often use "workforce" to prevent ambiguity between American and British stakeholders.

Academic Research

Scientific papers regarding economics or sociology use "labor" in US journals and "labour" in UK journals.

Pronunciation

The spelling change does not alter the spoken word.

The spelling difference does not change the spoken word at all; both are pronounced with the same number of syllables and stress pattern.

Word	IPA	Syllables
Airplane (US)	/ˈleɪ.bər/	2 (LAY-ber)
Aeroplane (UK)	/ˈleɪ.bə/	2 (LAY-buh)

In both American and British English, the word is pronounced with two distinct beats. The American version features a slightly harder 'r' sound at the end due to rhotic pronunciation, while the British version uses a subtler, reduced vowel sound.

Spelling Difference

A visual breakdown of the letters.

The core difference is the presence of the letter "u" right after the "o."

Labor

Labour

The American version uses just "or," while the British version retains the "our" ending, a hallmark of British English spelling derived from Old French.

Why Are the Spellings Different?

The history behind the transatlantic split.

1. The Latin Roots

The word comes from the Latin 'labor', meaning toil or hard work. It entered English via Old French, where the 'u' was often retained in spelling.

2. Noah Webster's Reform

In the early 1800s, American lexicographer Noah Webster sought to simplify American spelling. He removed the 'u' from words like 'labour,' 'colour,' and 'flavour' to make them simpler and more phonetic.

3. The Political Standard

In the early 20th century, the British Labour Party officially adopted the 'u' spelling. This cemented the 'our' suffix as a culturally significant marker of British English in the political sphere.

Synonyms, Antonyms & Rhyming Words

Words related to, opposite of, and sounding like labor/labour.

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, "labor."

The manual labor was exhausting but necessary.
She went into labor at exactly midnight.
The Department of Labor announced new workplace regulations.
Cheap labor drives the factory's massive profits.
We celebrate Labor Day with a family barbecue.
The labor union voted to authorize a strike.
Renovating the old house was a true labor of love.
The local labor market is highly competitive right now.
She was in labor for twelve hours before the baby arrived.
The national labor force is shrinking.
The construction labor was demanding but well-paid.
He complained about the unfair labor practices at the warehouse.
The company outsourced its labor to save money.
The division of labor made the assembly line efficient.
The labor costs exceeded the initial budget.
He wrote a college paper on labor rights in the 1920s.
The farm labor was mostly seasonal migrant workers.
Child labor laws are strictly enforced in this state.
The labor agreement was signed by both parties.
She experienced false labor pains yesterday evening.
The labor pool is shrinking in this region.
He was sentenced to hard labor for his crimes.
The labor exchange helped him find a new job.
They used labor-saving devices in the new factory.
The labor dispute lasted for three months.
The labor movement fought for the eight-hour workday.
Migrant labor is essential to the agricultural industry.
The labor contractor hired fifty men for the harvest.
The labor efficiency improved significantly after the upgrade.
He performed unpaid labor for the charity.

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

The manual labour was exhausting but necessary.
She went into labour at exactly midnight.
The Labour Party won the general election.
Cheap labour drives the factory's massive profits.
We celebrate May Day as a labour festival.
The labour union voted to authorise a strike.
Renovating the old house was a true labour of love.
The local labour market is highly competitive right now.
She was in labour for twelve hours before the baby arrived.
The national labour force is shrinking.
The construction labour was demanding but well-paid.
He complained about the unfair labour practices at the warehouse.
The company outsourced its labour to save money.
The division of labour made the assembly line efficient.
The labour costs exceeded the initial budget.
He wrote a university paper on labour rights in the 1920s.
The farm labour was mostly seasonal migrant workers.
Child labour laws are strictly enforced in this country.
The labour agreement was signed by both parties.
She experienced false labour pains yesterday evening.
The labour pool is shrinking in this region.
He was sentenced to hard labour for his crimes.
The labour exchange helped him find a new job.
They used labour-saving devices in the new factory.
The labour dispute lasted for three months.
The labour movement fought for the eight-hour workday.
Migrant labour is essential to the agricultural industry.
The labour contractor hired fifty men for the harvest.
The labour efficiency improved significantly after the upgrade.
He performed unpaid labour for the charity.

Labor in US English

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

In the United States, "labor" is the standard spelling in both politics and everyday writing. American labor unions, government agencies, and everyday speakers favor this streamlined spelling.

Legal & Regulatory Definition

The U.S. Department of Labor (DOL) is the federal agency responsible for occupational safety, wage and hour standards, and unemployment benefits. It exclusively uses the "or" spelling.

Politics & Unions

The term "labor" is standard in American politics. The AFL-CIO is the largest federation of labor unions in the United States.

Cultural Holidays

The spelling is cemented in American culture through Labor Day, a federal holiday celebrated on the first Monday in September.

Common American Phrases

• Labor Day: The September holiday.
• Department of Labor: The US government agency.
• Labor union: Organized workforce groups.
• In labor: The process of childbirth.

Labour in UK English

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

In the UK, "labour" is the standard spelling for all contexts. British style guides and dictionaries strictly maintain the traditional "our" ending.

Political Standard

The Labour Party is one of the two major political parties in the UK. Its name is officially spelled with a 'u,' cementing the spelling in national politics.

Media & Unions

The UK has a long tradition of trade unions. The Labour Representation Committee was formed in 1900, standardizing the "our" spelling in industrial contexts.

Cultural & Literary Usage

The word appears in iconic British phrases like "labour of love" and "hard labour," retaining the traditional spelling throughout modern literature.

Common British Phrases

• Labour Party: The UK political party.
• Trade union labour: Unionized workers.
• In labour: The process of childbirth.
• Hard labour: Prison sentences.

Related Workforce & Spelling Vocabulary

Other words that differ in professional and general writing.

US English	UK English	Meaning
Color	Colour	The visual property of an object.
Honor	Honour	High respect or privilege.
Neighbor	Neighbour	A person living next door.
Flavor	Flavour	The taste of food or drink.

Other US–UK Spelling Differences

More words that change when you cross the pond.

Center vs. Centre

Americans use "center" for the middle of something, while Britons use "centre."

Meter vs. Metre

The US uses "meter" for the unit of length, while the UK uses "metre."

Theater vs. Theatre

American English spells it "theater," while British English spells it "theatre."

Catalog vs. Catalogue

The US prefers "catalog" for a list of items, while the UK often uses "catalogue."

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 "The labor union is voting for the labour party" confuses the reader and breaks the consistency of your text.

Using "labour" in an American economic paper.

✓ Use "labor" for US-based journals and schools.

Why: American professors and publishers expect standard American English. Using the British spelling looks like a typo in this context.

Using "labor" for the UK political party.

✓ Always use "Labour" for the UK party.

Why: Proper nouns follow their own rules. The UK Labour Party is always spelled with a 'u,' even in American newspapers.

Hyphenating the words incorrectly ("labour-intensive").

✓ Always use a single, unhyphenated word for the base term.

Why: While compound adjectives use hyphens (labor-intensive), the base word itself must never be hyphenated.

Assuming "labor" and "labour" have different meanings.

✓ Recognize that they are entirely the same word.

Why: Whether referring to work, the workforce, or childbirth, the meaning is identical; only the regional spelling differs.

Pronouncing "labour" as "lay-boor."

✓ Pronounce it "LAY-buh."

Why: The 'our' in British English does not sound like 'oor.' It is a reduced vowel sound, creating a subtle ending to the word.

Using "labor" for a British trade union.

✓ Use "labour" for UK audiences.

Why: British media and trade unions strictly enforce traditional spelling standards in their publications.

Capitalizing the spelling for the US Department of Labor.

✓ Use "Labor" when referring to the specific government agency.

Why: In the US, the Department of Labor is a proper noun and is always capitalized and spelled without the 'u.'

Confusing the spelling of the workforce with the medical event.

✓ Keep the spelling consistent for both meanings.

Why: Whether a woman is in labor (US) or labour (UK), the spelling rule remains identical to the work context.

Assuming the 'u' changes the meaning.

✓ Recognize it as a purely orthographic difference.

Why: Some writers assume 'labour' means physical work while 'labor' means the political party, but both meanings apply equally to both spellings in their respective regions.

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 American media dominates globally, many ESL learners are more familiar with "labor." However, if your organization is based in Europe or the Commonwealth, "labour" 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 = Labor

UK = Labour

Notice the letter "U." The UK spelling keeps the "u" in "labour." America drops the "u" for "labor."

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Frequently Asked Questions

Quick answers to common questions.

Are 'labor' and 'labour' pronounced the same way?

Essentially, yes. Both are pronounced with two syllables (LAY-ber / LAY-buh). The American version has a slightly harder 'r' sound, while the British version uses a reduced vowel, but the pronunciation is largely identical.

Why does America use 'labor' instead of 'labour'?

In the early 19th century, American lexicographer Noah Webster sought to simplify American spelling to make it distinct from British English and more phonetic. Dropping the 'u' in 'labour' was part of this movement.

Is 'labour' ever used in the United States?

It is very rare in modern American English. You might occasionally see it in historical contexts or in references to the UK Labour Party, but 'labor' is the undisputed standard in the US today.

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

Canada generally follows the British spelling ('labour'), though American spelling is also widely understood. Australia and New Zealand follow British English and use 'labour'.

Is 'Labor Day' spelled with a 'u' in the UK?

The US holiday is always 'Labor Day.' In the UK, the equivalent holiday is often referred to as May Day or the Labour Day festival, retaining the 'u' spelling.

Which spelling is older, 'labor' or 'labour'?

'Labour' is the older spelling, retaining the 'u' from Old French. 'Labor' came later as an Americanized simplification introduced by Noah Webster.

Should I use 'labor' or 'labour' 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 'labor'. For a British or international European journal, 'labour' is preferred.

What is the word 'labour' derived from?

The word comes from the Latin word 'labor', meaning toil or hard work. It entered English via Old French, which influenced the retention of the 'u' in British spelling.

Are there other words that follow this 'or' vs 'our' pattern?

Yes, this is a very common pattern. Other examples include 'color/colour', 'honor/honour', 'flavor/flavour', and 'neighbor/neighbour'.

Which word is more commonly used globally today?

Because of the dominance of the American tech and media industries, 'labor' is recognized globally. However, 'labour' remains the correct standard spelling in formal British, Australian, and New Zealand English.