- sleeper, slumberer - a rester who is sleeping
--1 is a kind of rester
--1 has particulars:dreamer; Rip van Winkle; sleeping beauty; sleepwalker, somnambulist, noctambulist; snorer; somniloquist Derived form: verb sleep1 - sleeper - a spy or saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal
--2 is a kind of spy, undercover agent; saboteur, wrecker, diversionist; terrorist
--2 is a member of sleeper nest- sleeper - an unexpected achiever of success; "the winner was a true sleeper--no one expected him to get it"
--3 is a kind of achiever, winner, success, succeeder
- tie, railroad tie, crosstie, sleeper - one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
--4 is a kind of brace, bracing
--4 is a part of railroad track, railroad, railway- sleeping car, sleeper, wagon-lit - a passenger car that has berths for sleeping
--5 is a kind of passenger car, coach, carriage
--5 has parts: drawing room; roometteDerived form: verb sleep2 - sleeper - a piece of furniture that can be opened up into a bed
--6 is a kind of furniture, piece of furniture, article of furniture
Derived form: verb sleep2 - sleeper, sleeper goby - tropical fish that resembles a goby and rests quietly on the bottom in shallow water
--7 is a kind of percoid fish, percoid, percoidean
--7 is a member of Eleotridae, family Eleotridae- sleeper - an unexpected hit; "that movie was the sleeper of the summer"
--8 is a kind of hit, smash, smasher, strike, bang
- sleeper - an unexpected achiever of success; "the winner was a true sleeper--no one expected him to get it"