Sleeper — synonyms, definition

1. sleeper (Noun) Brit, N. Amer

crosstie railroad tie sleeper goby sleeping car slumberer snoozer tie wagon-lit

sleeper (Noun) — Someone who is sleeping.

sleeper (Noun) — A spy, saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal.

sleeper (Noun) — An unexpected achiever of success. ex. "the winner was a true sleeper--no one expected him to get it"

sleeper (Noun) — One of the cross braces that support the rails on a railway track.

sleeper (Noun) — A passenger car that has berths for sleeping.

sleeper (Noun) — Pyjamas with feet; worn by children.

sleeper (Noun) — A piece of furniture that can be opened up into a bed.

sleeper (Noun) — Tropical fish that resembles a goby and rests quietly on the bottom in shallow water.

sleeper (Noun) — An unexpected hit. ex. "that movie was the sleeper of the summer"

sleeper (Noun) — A structural beam in a floor.

Saboteur achiever article of furniture bang brace bracing carriage coach diversionist furniture hit jammies jim-jams pajama passenger car percoid percoid fish percoidean piece of furniture pj's • • • Rip van Winkle Sleeping Beauty dreamer noctambulist sleepwalker snorer somnambulist somniloquist drawing room roomette Eleotridae family Eleotridae railroad railroad track railway railway track sleeper nest act of terrorism terrorism terrorist act