1. equivalent to the sum of two and three; one more than four, or half of ten; 5: "five minutes later she came back"
▪ a group or unit of five people or things: "the bulbs are planted in threes or fives"
▪ five years old: "Vic moved to Darlington when he was five"
▪ five o'clock: "we left at half past five"
▪ a size of garment or other merchandise denoted by five.
▪ a playing card or domino with five pips.
Word OriginOld Englishfīf, of Germanic origin; related to Dutch vijf and German fünf, from an Indo-European root shared by Latin quinque and Greek pente.