ENGLISH THESAURUS & DICTIONARY

one

adjective · noun

Words like one

Compare the definitions to choose the right meaning.

31 words · adjective, nounSort by

Synonymadjective / noun

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Similar meaningadjective

combined

Similar meaningadjective

Related words aren’t always interchangeable. Check the definition before you choose.

MEANING & USAGE

Definitions & examples

01adjective

used of a single unit or thing; not two or more

“‘ane’ is Scottish”

02adjective

having the indivisible character of a unit

“a unitary action”

“spoke with one voice”

03adjective

of the same kind or quality

“two animals of one species”

04adjective

(informal) very; used informally as an intensifier

“that is one fine dog”

“a right fine day”

5 more meanings

05adjective

indefinite in time or position

“he will come one day”

“one place or another”

06adjective

being a single entity made by combining separate components

“three chemicals combining into one solution”

07adjective

eminent beyond or above comparison

“matchless beauty”

“the team's nonpareil center fielder”

08noun

the smallest whole number or a numeral representing this number

“he has the one but will need a two and three to go with it”

“they had lunch at one”

09noun

a single person or thing

“he is the best one”

“this is the one I ordered”

Meanings and examples from Open English WordNet 2025. About our sources ↗

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Expressions with “one”

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Explore multiword dictionary entries containing this word. Each has its own meanings and related words.

one C for one fast one one iron one shot one time loved one in one ear