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 Ou

No Words Found

We couldn't find any words starting with "O" for the combination "Ou" 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 vowel sound is used in the first syllable of 'oaklike'?

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

2. Which sentence uses 'oakberry' correctly?

The squirrel cracked the hard oakberry. The oakberry swam in the river. I drove my oakberry to work. She painted the wall oakberry.

3. 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

4. Which sentence uses 'oaf' correctly?

He oafed the ball. She is a big oaf. He has an oaf of bread. The oaf is running fast.

5. Which of the following is a correct use of 'oad'?

The oad man. He oad quickly. I feel oad. She is an oad.

6. How is the word 'oaklet' correctly pronounced?

OAK-lit oak-LET AHK-lay OAK-uh-let

7. What does the phrase 'open mind' mean?

A brain that is visible A willingness to consider new ideas A door that leads to the brain A person who talks too much

8. What is the difference between an 'acorn' and an 'oakling'?

They are the same thing An acorn is the seed; an oakling is the young tree An oakling is the seed; an acorn is the tree An acorn is a type of oakling

9. 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.

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

Propose Give Withhold Present

11. What is the correct plural form of 'oaf'?

Oaves Oafs Oaves Oafen

12. What does the noun 'oafishness' primarily describe?

Intentional cruelty Clumsiness and lack of social grace High intelligence Physical strength

13. Which sentence uses 'oafish' correctly?

He oafished the ball. The oafish man knocked over the vase. She is an oafish. The oafish quickly ran away.

14. How many syllables does 'oaken' have?

One Two Three Four

15. 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.

16. Which sentence is grammatically correct regarding the double-object structure?

She offered to him a drink. She offered a drink him. She offered him a drink. She offered for him a drink.

17. In historical contexts, what was the purpose of an oakboy gathering acorns?

To plant new forests To make flour To feed pigs (pannage) To sell to merchants

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

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

19. 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.

20. What part(s) of speech can the word 'open' be?

Noun only Verb only Adjective and Verb Adverb and Adjective

21. How is the word 'opportunity' pronounced in American English?

ah-POR-too-nuh-tee ah-per-TOO-nuh-tee ah-per-too-NUH-tee OP-er-too-nuh-tee

22. Which of the following is a common collocation with 'offer'?

Offer weather Job offer Offer metal Offer speed

23. What does the phrase 'seize the opportunity' mean?

To ignore a chance To wait for a better chance To act quickly to take advantage of a chance To create a problem

24. How is the word 'open' pronounced in American English?

AH-pen (short a) oh-PEN (stress second syllable) OH-pen (long o, stress first syllable) OO-pen

25. 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.

26. Which sentence uses 'oafishly' correctly?

He is an oafishly man. The oafishly fell down. He oafishly knocked over the lamp. She sang oafishly.

27. Which phrase is commonly used to emphasize extreme clumsiness?

Pure oafishness Oafishness count The oafishness factor An oafishness of

28. Which word rhymes perfectly with 'oak'?

Book Joke Rock Oar

29. Why did writers historically use the spelling 'oad'?

It was a typo. To reflect regional accents that dropped the 'l'. To make words longer. It was a royal decree.

30. What is the common name for plants formerly called Oakesia?

Sunflowers Ferns Oak trees Monkeyflowers

31. What language did the roots of 'Oakenshaw' originate from?

Latin French Old English Greek

32. How is 'Oakland' pronounced in American English?

oak-LAND OAK-lnd OH-kah-land uhk-LAHND

33. Which sentence uses 'Oakesia' correctly?

I am an Oakesia. He oakesia the car. The genus Oakesia is obsolete. The Oakesia barked.

34. How is 'oad' pronounced?

Like 'odd' Like 'ah-d' Like 'oh-d' (rhyming with road) Like 'oo-ad'

35. What is the difference between 'offer' and 'give'?

They mean exactly the same thing. Give transfers possession; offer presents an option that can be refused. Offer is permanent; give is temporary. Give is only for objects; offer is only for ideas.

36. Which ancient legal system is the word 'oadal' derived from?

Roman Law Old Norse Law Napoleonic Code English Common Law

37. What is the origin of the word 'opportunity'?

Greek 'optikon' (vision) Latin 'opportunus' (toward the port) French 'opportun' (timely) Old English 'opnung' (opening)

38. Which sentence uses 'oaken' correctly?

The oaken is heavy. He bought an oaken table. She oaken the door. It is made of oaken.

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

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

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

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

41. Which family does Oakesia belong to?

Rosaceae Pinaceae Phrymaceae Poaceae

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

-ing oak- -ling -le

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

Oaklets Oaklet Oaklettes Oakli

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

Clumsily Bumblingly Gracefully Ineptly

45. Which of these is an antonym (opposite concept) for oak in terms of wood type?

Hardwood Maple Pine (Softwood) Timber

46. Where is the city of Oakland located?

Inland Texas Southern California The San Francisco Bay Area The Pacific Northwest

47. What does the plural noun 'oafs' refer to?

Large farm animals Clumsy, awkward, or stupid men Magical forest creatures Expensive leather shoes

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

A An The No article

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

Oak homestead Oak wood River of oaks Stone oak

50. 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.