ruff

(noun) an external body part consisting of feathers or hair about the neck of a bird or other animal. Synonyms: frill.

(noun) a high tight collar. Synonyms: choker, ruffle, neck ruff.

(noun) common Eurasian sandpiper; the male has an erectile neck ruff in breeding season. Synonyms: Philomachus pugnax.

(noun) (card games) the act of taking a trick with a trump when unable to follow suit. Synonyms: trumping.

(verb) play a trump. Synonyms: trump.