Tern

Any one of numerous species of long-winged aquatic birds, allied to the gulls, and belonging to Sterna and various allied genera.

Threefold; triple; consisting of three; ternate.

That which consists of, or pertains to, three things or numbers together; especially, a prize in a lottery resulting from the favorable combination of three numbers in the drawing; also, the three numbers themselves.

small slender gull having narrow wings and a forked tail