Breakneck

['breɪknek] or ['breknɛk]

Definition

(adj.) moving at very high speed; 'a breakneck pace' .

Inputed by Chris--From WordNet

Definition

(n.) A fall that breaks the neck.

(n.) A steep place endangering the neck.

(a.) Producing danger of a broken neck; as, breakneck speed.

Checker: Terrance