numeral / noun

three

THREE/θrˈi/

The number following two.

The three red apples sit in a horizontal row.

Exactly three matching red apples arranged in a clearly separated horizontal row, making the quantity immediately countable.
Etymology

Old English þreo already named the same number. Unlike a word whose modern meaning developed through metaphor, three preserves its ancestor’s numerical meaning directly.

In context

Primer9:26
two factorial is two times one. Three factorial is three times, two times, one, and four factorial is say it with me, four times, three times, two times, one
Overexplaining the binomial distribution

More examples

  • She draws a three from the deck.
  • He rolls a three on his first turn.
  • She sinks a three just before the buzzer.

Forms

three · threes

third numeral — The ordinal number corresponding to three.