Killer n. : One who deprives of life; one who, or that which, kills.

Killer n. : A voracious, toothed whale of the genus Orca, of which several species are known.

Example:
How does a person become a serial Killer?

Taxonomy
song, nickname, game, novel, free encyclopedia, Films, The Killers, game characters, card game, The Shadow, Tech N9ne, 1980s, pool, game related, parlor game, game played, biographical novel, Kiss song.

Defination from the web:
Killer (pool), a multi-player pocket billiards (pool) game. Killer (card game), a climbing card game related to tien len ... The Killer (1989 film), directed by John Woo and starring Chow Yun Fat. The Killer (2006 film), a Bollywood film starring Emraan Hashmi and Irrfan Khan ...