sleeper

中文： 睡眠者、潜伏特工、枕木

1. Someone who sleeps. · I'm a light sleeper: I get woken up by the smallest of sounds.· She's a heavy sleeper: it takes a lot to wake her up.
2. That which lies dormant, as a law.
3. A spy, saboteur, or terrorist who lives unobtrusively in a community until activated by a prearranged signal; may be part of a sleeper cell.
4. A small starter earring, worn to prevent a piercing from closing.
5. A railway sleeping car. · We spent a night on an uncomfortable sleeper between Athens and Vienna.
6. A sleeper hold.
7. Something that achieves unexpected success after an interval of time. · A box-office bomb when it first came out, the film was a sleeper, becoming much more popular decades after being released.
8. Any member of the family Odontobutidae of goby-like bottom-feeding freshwater fish.

复数 sleepers