Main entry: sleeper
Definition: an unexpected hit
Usage: that movie was the sleeper of the summer
Main entry: sleeper, sleeper goby
Definition: tropical fish that resembles a goby and rests quietly on the bottom in shallow water
Main entry: sleeper
Definition: a piece of furniture that can be opened up into a bed
Main entry: sleeper
Definition: pajamas with feet; worn by children
Main entry: sleeper, sleeping car, wagon-lit
Definition: a passenger car that has berths for sleeping
Main entry: tie, railroad tie, sleeper, crosstie
Definition: one of the cross braces that support the rails on a railway track
Usage: the British call a railroad tie a sleeper
Main entry: sleeper, slumberer
Definition: a rester who is sleeping
Main entry: sleeper
Definition: an unexpected achiever of success
Usage: the winner was a true sleeper--no one expected him to get it
Main entry: sleeper
Definition: 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