Etimology
From Middle English two, twa, from Old English twā, feminine and neuter of twēġen (whence twain), from Proto-West Germanic *twai-, from Proto-Germanic *twai, from Proto-Indo-European *dwóh₁. Cognate with Scots twa (“two”); North Frisian tou, tuu (“two”); Saterland Frisian twäin, two (“two”); West Frisian twa (“two”); Dutch twee (“two”); Low German twee, twei (“two”); German zwei, zwo (“two”); Danish and Norwegian to (“two”); Swedish två, tu (“two”); Icelandic tvö (“two”); Faroese tvey (“two”); Latin duō (“two”); Ancient Greek δύο (dúo, “two”); Irish dhá (“two”); Lithuanian dù (“two”); Russian два (dva, “two”); Albanian dy (“two”); Old Armenian երկու (erku, “two”); Sanskrit द्व (dvá, “two”); Tocharian A wu, Tocharian B wi. Doublet of duo. See also twain.
numeral
two
A numerical value equal to 2; this many dots (••).
Describing a set or group with two elements.
Examples
Venters began to count them—one—two—three—four—on up to sixteen.
“ […] The two murders might have been done by one of the ryots who was dissatisfied over his assessment and thought he had a grievance. […].”
noun
two (plural twos)
The digit/figure 2.
(US, informal) A two-dollar bill.
A child aged two.
A playing card featuring two pips.
Two o'clock, either a.m. or p.m.
(film) Short for two shot.
Examples
The number 2202 contains three twos.
This toy is suitable for the twos and threes.
It was a weary time. A carriage clock had been placed on the discoloured wooden mantelpiece, and slowly its hands crept on from one to two and from two to three.