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 Ol

No Words Found

We couldn't find any words starting with "O" for the combination "Ol" 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. What does the word 'oaken' describe?

Things made of plastic Things made of oak wood Things made of glass Things made of stone

2. What does the name 'Oakland' literally mean?

Land of lakes Land of oak trees Land of gold Land of the setting sun

3. Which sentence is grammatically correct when making a remark?

She observed about the rain. She observed that it was raining. She observed on the rain. She observed to the rain.

4. Which sentence uses 'oaklike' correctly?

The table is made of oaklike. She had an oaklike grip. He oakliked the door. The oaklike fell down.

5. What part(s) of speech can the word 'offer' be?

Noun only Verb only Noun and Verb Adjective only

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

Oakhaven Auckland Oklahoma Ostend

7. Which sentence uses 'offer' correctly as a verb?

I offered to helping him. I offered him to help. I offered about helping. I offered to help him.

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

Oak Tree Duckling Forest

9. Why shouldn't you eat a raw green oakberry?

It is highly toxic It is too bitter due to tannins It will make you fly It is too spicy

10. Historically, the word 'oaf' comes from the word for what mythical creature?

Elf Ogre Giant Troll

11. Which part of speech is 'oaf'?

Verb Noun Adjective Adverb

12. What part of speech is the word 'opportunity'?

Verb Adjective Noun Adverb

13. What is the root noun from which 'oafishly' is derived?

Oaf Oafish Oafness Oafism

14. Which of the following is a grammatical rule for 'Oakenshaw'?

It must be lowercase. It takes the article 'the'. It is always capitalized. It can be used as a verb.

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

Acorn Pinecone Chestnut Walnut

16. Which word is an antonym for 'observe' when used to mean following a rule?

Comply Follow Violate Respect

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

Off Cough Loaf Oven

18. What does 'oaklike' mean?

Made entirely of oak wood Resembling an oak tree or its strength Disliking oak trees A type of oak leaf

19. What is a common modern mistake when people see the word 'oad'?

Thinking it means 'new'. Thinking it is a typo for 'odd' or 'ode'. Pronouncing it 'o-a-d'. Using it as a verb.

20. Which word is an antonym for 'offer' when used as a verb?

Propose Give Withhold Present

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

Stupidity Awkwardness Grace Ineptitude

22. What is the singular form of 'oafs'?

Oaves Oafish Oaf Oafses

23. Who would be considered the adult superior to a historical oakboy?

The king The swineherd The knight The merchant

24. Which word rhymes perfectly with 'oak'?

Book Joke Rock Oar

25. Which mythological creature is the word 'oaf' etymologically related to?

Dragons Trolls Elves Giants

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

Awkward Graceful Stupid Uncouth

27. What part of speech is 'oakmoss'?

Noun Verb Adverb Preposition

28. 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

29. Which sentence uses 'oakling' correctly?

I ate a delicious oakling. The oakling swayed in the breeze. I need to oakling the floor. That is a very oakling idea.

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

-ing oak- -ling -le

31. What is the opposite of an oaklet?

A sapling An acorn A giant ancient oak A pine tree

32. What is the difference between 'opportunity' and 'chance'?

They mean exactly the same thing. Opportunity implies randomness; chance implies a favorable circumstance. Opportunity implies a favorable circumstance to be acted upon; chance often implies randomness or risk. Opportunity is only for jobs; chance is for weather.

33. How is the word 'oakboy' correctly pronounced?

OCK-boy oak-BOY OAK-boy oh-KAY-boy

34. 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

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

Sapling Lumber Root Canopy

36. What is a common spelling mistake when pluralizing 'oaf'?

Spelling it 'oaves' Spelling it 'oafs' Spelling it 'oaffs' Spelling it 'oaps'

37. What is the noun form of 'offer' meaning 'a thing presented for acceptance'?

Offering Offerer Offer Offered

38. Which article should be used before 'oaklet'?

A An The No article

39. Which sentence uses 'observe' correctly to mean 'watching'?

I observed him to sleep. I observed him sleep. I observed him to sleeping. I observed on him sleeping.

40. Which sentence uses 'oafs' correctly?

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

41. 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)

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

Two Four Three One

43. Where does the 'shaw' in Oakenshaw come from?

Old English for 'field' Old English for 'small wood' Celtic for 'water' Latin for 'stone'

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

Gentlemen Athletes Klutzes Geniuses

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

A nymph A dryad A satyr A centaur

46. In what context is the word 'oaklet' most likely to be used?

Scientific botany reports Casual conversation about cars Poetry and descriptive literature Cooking recipes

47. Which sentence is grammatically correct?

I have many opportunity. He missed an opportunity to buying a house. This is a great opportunity for me. She has an opportunity of studying.

48. Which of the following is an antonym for 'oafishly'?

Clumsily Bumblingly Gracefully Ineptly

49. Which sentence is grammatically correct?

He is very organize. I need an organize for my closet. The teacher organized the students to sit in groups. We organized the event by handle the catering.

50. What is the plural form of 'oaklet'?

Oaklets Oaklet Oaklettes Oakli