A tern is a small black and white seabird with long wings and a forked tail.
tern in British English1
(tɜːn)
noun
any aquatic bird of the subfamily Sterninae, having a forked tail, long narrow wings, a pointed bill, and a typically black-and-white plumage: family Laridae (gulls, etc), order Charadriiformes
Word origin
C18: from Old Norse therna; related to Norwegian terna, Swedish tärna
tern in British English2
(tɜːn)
noun
1.
a three-masted schooner
2. rare
a group of three
Word origin
C14: from Old French terne, from Italian terno, from Latin ternī three each; related to Latin ter thrice, trēs three
tern in American English
(tɜrn)
noun
any of several shorebirds (family Laridae) with webbed feet, a deeply forked tail, a straight bill, and a slender body; sea swallow
Word origin
< ON therna, via E Anglian dial.; akin to OE stearna