A number that is reached by multiplying 2 by 2, is an example of four.
I'll take the threes, fours and fives and go to the playground.
- All four limbs of an animal or person:A baby crawling on all fours.
- on all four feet
- on hands and knees (or feet)
- exactly equatable (with)
Origin of four
- Middle English from Old English fēower kwetwer- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- Middle English fower, from Old English fēower, from Proto-Germanic *fedwōr, from previous pre-Grimm Proto-Germanic *petwṓr, from Proto-Indo-European *kʷetwṓr, the neuter form of Proto-Indo-European *kʷetwóres. Cognate with German vier, Gothic (fidw), Ancient Greek τέσσαρες (tessares), Latin quattuor (French quatre, Portuguese quatro), Old Norse fjórir (Danish fire), Russian четыре (četýre), Sanskrit चतुर् (catur).