four Meaning, Definition & Usage

  1. noun the cardinal number that is the sum of three and one
    tetrad; quaternity; quadruplet; foursome; Little Joe; IV; quaternion; quatern; quaternary; quartet; 4.
  2. noun a playing card or domino or die whose upward face shows four pips
    four-spot.
  3. adjective satellite being one more than three
    4; iv.

WordNet

Four adjective
Etymology
OE. four, fower, feower, AS. feówer; akin to OS. fiwar, D. & G. vier, OHG. fior, Icel. fjrir, Sw. fyra, Dan. fire, Goth. fidwr, Russ. chetuire, chetvero, W. pedwar, L. quatuor, Gr. , , , Skr. catur. 302. Cf. Farthing, Firkin, Forty, Cater four, Quater-cousin, Quatuor, Quire of paper, tetrarch.
Definitions
  1. One more than three; twice two.
Four noun
Definitions
  1. The sum of four units; four units or objects.
  2. A symbol representing four units, as 4 or iv.
  3. Four things of the same kind, esp. four horses; as, a chariot and four.

Webster 1913