1

 Dictionary entry overview: What does 1 mean? 

• 1 (noun)
  The noun 1 has 1 sense:

1. the smallest whole number or a numeral representing this number

  Familiarity information: 1 used as a noun is very rare.

• 1 (adjective)
  The adjective 1 has 1 sense:

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

  Familiarity information: 1 used as an adjective is very rare.

 Dictionary entry details 

• 1 (noun)

Sense 1

Meaning:

The smallest whole number or a numeral representing this number

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

1; ace; I; one; single; unity

Context example:

they had lunch at one

Hypernyms ("1" is a kind of...):

digit; figure (one of the elements that collectively form a system of numeration)

Hyponyms (each of the following is a kind of "1"):

monad; monas (a singular metaphysical entity from which material properties are said to derive)

singleton (a single object (as distinguished from a pair))

• 1 (adjective)

Sense 1

Meaning:

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

Synonyms:

1; ane; i; one

Context example:

'ane' is Scottish

Similar:

cardinal (being or denoting a numerical quantity but not order)