sleeper

noun sleep·er \ ˈslē-pər \

Definition of sleeper

1 :one that sleeps
2 :a piece of timber, stone, or steel on or near the ground to support a superstructure, keep railroad rails in place, or receive floor joists :stringpiece
4 :someone or something unpromising or unnoticed that suddenly attains prominence or value
  • the low-budget film became the summer's sleeper
5 :children's pajamas usually with feet usually used in plural
6 chiefly British :a small earring or stud worn to keep the hole of a pierced ear from closing
7 :2mole 4

Examples of sleeper in a Sentence

  1. Sleepers were awakened by the sound of a loud crash.

  2. He may turn out to be the sleeper in this year's election.

  3. The movie was the summer's sleeper.

  4. The movie became the sleeper hit of the summer.

Recent Examples of sleeper from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sleeper.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sleeper

12th century

sleeper Synonyms

Synonyms
dozer, slumberer
Related Words
nodder
Near Antonyms
insomniac; riser, waker


SLEEPER Defined for English Language Learners

sleeper

noun

Definition of sleeper for English Language Learners

  • : a person who sleeps in a particular way

  • : someone who is asleep

  • : a place or piece of furniture that can be used for sleeping


SLEEPER Defined for Kids

sleeper

noun sleep·er \ ˈslē-pər \

Definition of sleeper for Students

1 :someone that sleeps
  • I'm a light sleeper.
2 :a railroad car with berths for sleeping


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