Is 'O' a vowel or a consonant?

The letter O is a vowel in the English alphabet. It is one of the five standard vowels used to form syllables.

What are some common words that start with O?

Some common words starting with O include various common terms. These words are frequently used in everyday English communication.

What is the longest word starting with O?

There are many long words starting with O, often found in scientific or medical terminology. Exploring our O-words by length list above can help you find high-value words for word games.

Are there any two-letter words starting with O for Scrabble?

Yes, there are usually valid two-letter words starting with O that are accepted in Scrabble. These short words are incredibly useful for clearing your rack and scoring parallel points.

How is the letter O pronounced in American English?

In American English, the letter O is pronounced with its distinct alphabetical sound. However, its pronunciation can change slightly depending on its position in a word and the letters surrounding it.

Words Starting
With O

Explore the vast world of "O" words. Filter by two-letter combinations below to find exactly what you need. Perfect for students, teachers, and word game enthusiasts.

Explore Words

Total Words

All oa ob oc od oe of og oh oi oj ok ol om on oo op oq or os ot ou ov ow ox oy oz

Words Starting With Ok

No Words Found

We couldn't find any words starting with "O" for the combination "Ok" in our dictionary. Try selecting another combination!

Origin of the Letter O

Why is 'O' shaped and used the way it is?

The letter 'O' traces its roots back to the Phoenician alphabet around 1000 BCE. The Phoenicians called it "Ayin". Originally a drawing of a human eye. The Greeks simplified the circle into Omicron (O) which passed directly to Latin.

The Evolution

Phoenician: Ayin (Meaning: Eye)

Original Symbol: 𐤏

Greek & Latin: Adapted into the modern shape.

Modern English: O

Usage & Significance

Understanding the origin of 'O' helps with spelling, pronunciation, and recognizing root words in modern English vocabulary.

O Words by Length

Quick reference for O-words sorted by character count.

Length	Common Words	Scrabble Point Value Avg
3 Letters	OAD, OAF, OAK	3 - 6 pts
4 Letters	OAFS, OPEN	4 - 8 pts
5 Letters	OADAL, OAKEN, OFFER	5 - 10 pts
6 Letters	OAFDOM, OAFISH, OAKBOY, OAKLET	6 - 12 pts
7 Letters	OAKESIA, OAKLAND, OAKLIKE, OAKLING	7 - 14 pts
8 Letters	OAFISHLY, OAKBERRY, ORGANIZE	8 - 16 pts

Explore Other Words

Navigate through the alphabet to find more words.

Words Starting With

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Words Ending With

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Frequently Asked Questions

Common questions about words starting with O.

Test Your Knowledge

Take this 50-question quiz on words starting with O.

1. How many syllables does the word 'oakberry' have?

Two Four Three One

2. Which word is the best synonym for 'oaklet'?

Sapling Lumber Root Canopy

3. What part of speech is the word 'oafishly'?

Noun Adjective Adverb Verb

4. Which word is the best antonym for 'oafishness'?

Stupidity Grace Malice Loutishness

5. Which word is the best synonym for the *physical* aspect of 'oafish'?

Boorish Graceful Clumsy Tactful

6. What vowel sound is used in the first syllable of 'oaklike'?

Short 'a' (ah) Long 'o' (oh) Short 'o' (aw) Long 'a' (ay)

7. Which word does 'oaf' rhyme with perfectly?

Off Cough Loaf Oven

8. Which suffix in 'oakling' indicates that it is small or young?

-ing oak- -ling -le

9. What part of speech is 'oakberry'?

Verb Noun Adjective Adverb

10. Which sentence uses 'oadal' correctly?

I need to oadal my house. She drives an oadal car. The clan defended their oadal rights. He is very oadal.

11. Which of the following is an antonym for 'oafish'?

Awkward Graceful Stupid Uncouth

12. How is the word 'oafish' pronounced?

AH-fish oh-FISH OH-fish OO-fish

13. What does the name 'Oakenshaw' literally translate to?

Oak homestead Oak wood River of oaks Stone oak

14. Which word is the closest everyday synonym for 'oafdom'?

Clumsiness Brilliance Boredom Elegance

15. Which of these trees could NOT be called an 'oaklet' when young?

A red oak A white oak A live oak A maple tree

16. Why should you avoid using 'oafishness' for someone with a motor disability?

It is a medical term. It is an insulting term for bad behavior, not a medical description. It only applies to animals. It is too formal.

17. Which word is the closest synonym for 'oafs'?

Gentlemen Athletes Klutzes Geniuses

18. When should you NOT use the word 'oaf'?

When someone trips and breaks a vase When someone is a lovable but clumsy friend When someone intentionally smashes a window When a large man bumps into a doorframe

19. What does it mean to 'observe a holiday'?

To watch someone go on vacation To formally celebrate or recognize a special day To cancel a holiday To ignore a tradition

20. Which of the following is a modern synonym for 'oakberry'?

Acorn Pinecone Chestnut Walnut

21. Which of the following is the correct way to make an electrical device work?

Open the TV Open the light Turn on the computer Open the radio

22. Which mythical creature is the female Greek equivalent to an oakboy?

A nymph A dryad A satyr A centaur

23. Which word is a Scottish variant of 'oad'?

Oad Auld Elder Ancient

24. Which sentence uses 'oafs' correctly?

He is oafs. They are a bunch of oafs. Stop oafsing around. She is an oafs.

25. What are the two primary meanings of the word 'oakboy'?

A lumberjack and a farmer A tree spirit and an acorn-gathering boy A type of tree and a type of bird A knight and a peasant

26. In which syllable is the primary stress placed when pronouncing 'oaklike'?

First (OAK) Second (lyk) Neither Both equally

27. What is the difference between 'observe' and 'notice'?

They mean exactly the same thing. Observe is casual; notice is deliberate. Observe implies deliberate, prolonged study; notice is sudden and casual. Observe is only for hearing; notice is for seeing.

28. Why is 'Oakesia' no longer used in modern botany?

The plants are extinct It was a hoax It is now classified under Erythranthe It was renamed after a bird

29. Which word sounds exactly like 'Oakland' but refers to a city in New Zealand?

Oakhaven Auckland Oklahoma Ostend

30. What does the archaic word 'oakberry' refer to?

A type of poisonous mushroom An acorn A small blueberry A piece of bark

31. Can a piece of land be 'very oadal'?

Yes, to show extreme ownership No, it is an absolute legal status Only in Scotland Only if it is large

32. In which region was 'oad' primarily used?

The American South Northern England and Scotland Australia Southern France

33. Which word shares the same diminutive suffix as 'oakling'?

Oak Tree Duckling Forest

34. Which sentence uses 'opportunity' correctly?

I have an opportunity for working. I have an opportunity to work. I have an opportunity of working. I have an opportunity working.

35. Which of the following is a common metaphorical use of 'oaklike'?

Oaklike flexibility Oaklike weakness Oaklike strength Oaklike transparency

36. How should the second syllable of 'oafdom' be pronounced?

Like 'dome' (as in a roof) Like 'dam' (as in water) Like 'dum' (as in dumb) Like 'doom' (as in destruction)

37. Historically, the word 'oaf' was a variation of which word?

Ox Elf Wolf Bear

38. Which of the following is an antonym for 'oafdom'?

Stupidity Awkwardness Grace Ineptitude

39. Which city is located directly across the bay from Oakland?

San Jose Sacramento San Francisco Los Angeles

40. When is it best to use the word 'oakberry' instead of 'acorn'?

In a science paper In a fantasy or historical poem In a grocery list In a math textbook

41. What does the phrase 'turn down an offer' mean?

To accept an offer To think about an offer To reject an offer To increase an offer

42. On which syllable is the primary stress placed?

The first syllable (OH) The second syllable (fish) The third syllable (lee) Equal stress on all

43. How is the word 'observe' pronounced in American English?

OB-serve (stress first syllable) uhb-ZURV (stress second syllable) ob-SERV-ay AHB-zairv

44. What part of speech is 'oad'?

Noun Verb Adjective Adverb

45. How is 'oaklike' typically spelled in modern English?

As two separate words With a hyphen (oak-like) As one word (oaklike) With an apostrophe

46. Which of the following is a major economic feature of Oakland?

The Hollywood film studios The Port of Oakland The Las Vegas strip The Silicon Valley tech campus

47. Is oakmoss safe to eat?

Yes, it is a delicacy Yes, but only when boiled No, it is not edible No, it is highly toxic immediately

48. Which sentence uses 'open' correctly to describe a state?

The store is opened. The store is open. The store is opening. The store opens.

49. Biologically, what is oakmoss?

A true moss A species of lichen A type of algae A parasitic fungus

50. What is the difference between 'oafish' and 'boorish'?

Oafish means rude; boorish means clumsy. Oafish implies clumsiness and stupidity; boorish implies rudeness. They mean exactly the same thing. Oafish is a compliment; boorish is an insult.