ruff

A stiffly starched frilled or pleated circular collar of lace, muslin, or other fine fabric, worn by men and women in the 1500s and 1600s.

A distinctive collarlike projection around the neck, as of feathers on a bird or of fur on a mammal.

A migratory sandpiper (Philomachus pugnax) of the Eastern Hemisphere, the male of which has collarlike, erectile feathers around the neck during the breeding season.

The playing of a trump card when one cannot follow suit.

An old game resembling whist.