A thing with three components; a set of three things.
Any of various seabirds of the subfamily Sternidae (of the family Laridae) that are similar to gulls but are smaller and have a forked tail.
Consisting of three components; ternate, threefold, triple.
The digit/figure 3.
Anything measuring three units, as length.
Three o'clock, either a.m. or p.m.
A person who is three years old.
The playing card featuring three pips.
A numerical value after two and before four. Represented in Arabic digits as 3; this many dots (•••).
Describing a set or group with three elements.