O

//ˈoʊ//

Word Type

Noun

Adjective

Proper Noun

Character

Particle

Numeral

Preposition

Intj

The word "o" can be used as noun, adjective, proper noun, character, particle, numeral, preposition and intj.

Word Relationships

Defined As

fifteenth letter of roman alphabet

Derived Terms

O Antiphon O Canada closed o kayo kopi o o-dark-thirty okay open o teh o

Etymologically Related To

Inflected/Variant Forms

Context

always capitalized in modern usage irc jocular organic chemistry printing soccer unstressed used in reading out numbers

Has Property

Broader Terms (Hypernyms)

alphabetic character blood group blood type chemical element element gas letter letter of the alphabet

Type Of (IsA)

blood group convention letter

Part Of

Related Terms

A B C C D E F G H I J K L M N NOx O-ch'eng O-chou O-ring OSETI P Q R S T U V W X Y Z a aitch ar bee cee cue dee di lo double-u e ef el em en ess ex exie-osies gah dai gau gee i jay kay kosong la letter letter lo oh pee peng po siew dai tee u vee wye zed zee ēalā, ǣlā, hēlā

Related Terms

Synonym Network

ah hey oh oxygen yo zero

More for "o"

Meaning Synonyms Word Forms Antonyms

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Next best steps

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.