one

adjective

  1. 1

    eminent beyond or above comparison

    matchless beauty

    the team's nonpareil center fielder

  2. 2

    indefinite in time or position

    he will come one day

    one place or another

  3. 3

    being a single entity made by combining separate components

    three chemicals combining into one solution

  4. 4

    used informally as an intensifier

    that is one fine dog

  5. 5

    of the same kind or quality

    two animals of one species

  6. 6

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

    `ane' is Scottish

  7. 7

    having the indivisible character of a unit

    a unitary action

    spoke with one voice

noun

  1. 1

    a single person or thing

    he is the best one

    this is the one I ordered

  2. 2

    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

Synonyms

Also useful for “one”:Unscrambler