Definitions
1.NounSomeone 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.NounThat which lies dormant, as a law.
3.NounA spy, saboteur, or terrorist who lives unobtrusively in a community until activated by a prearranged signal; may be part of a sleeper cell.
4.NounA small starter earring, worn to prevent a piercing from closing.
5.NounA railway sleeping car."We spent a night on an uncomfortable sleeper between Athens and Vienna."
6.NounA sleeper hold.
7.NounSomething 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.NounAny of family Odontobutidae of goby-like bottom-feeding freshwater fish.
9.NounA nurse shark (family Ginglymostomatidae).
10.NounA type of pajama for a person, especially a child, that covers the whole body, including the feet."Aaron, Devin, and Laura looked so comfy in their sleepers."
11.NounAn automobile which has been internally modified to excess, while retaining a mostly stock appearance in order to fool opponents in a drag race, or to avoid the attention of the police.
12.NounA sedative.
13.NounA bet placed on the gambling table and then forgotten about by the gambler.
14.NounA pod or similar device containing a person in cryosleep.
15.VerbTo mark a calf by cutting its ear.
16.NounA railroad tie.
17.NounA structural beam in a floor running perpendicular to both the joists beneath and floorboards above.
18.NounA heavy floor timber in a ship's bottom.
19.NounThe lowest, or bottom, tier of casks.