Tern (noun)

1. A seabird of the sandpiper family, typically having a slender bill, narrow wings, and a forked tail.
2. A member of a group of seabirds that includes the Arctic tern, common tern, and roseate tern.

Origin:

From the old english "terna" and old french "tern", both meaning "tern".

Examples:

1. The tern gracefully glided over the ocean's surface.
2. The tern nested on the small island.
3. The tern's forked tail made it easy to identify.
4. The tern's diet mainly consists of small fish and marine invertebrates.
5. The tern migrated annually from the Arctic to the Antarctic.