A rarity;

(idiomatic) Someone or something that very closely resembles another; someone or something easily mistaken for another.

(baseball, slang) A ball which falls over the infielders’ heads for a hit, as if it were a bird shot by a hunter. / Used other than figuratively or idiomatically: see dead, bird.

(idiomatic) One who is in serious danger or trouble. / (idiomatic) A project that is doomed to failure from the start.

(physiology) The portion of the respiratory tract that is ventilated but not perfused by pulmonary circulation.

(idiomatic) To refuse completely to do something, generally out of scorn.

Former glacier ice that is no longer connected to the active glacier, therefore not moving, and becoming covered with sediments.

present participle of dead stick

(simile) Entirely, unquestionably or certainly dead.

(colloquial) An empty beer bottle.