sleeper

/ˈsliːpər/ noun

Definition

a light/heavy sleeper › someone who wakes up easily/does not wake up easily

TRAIN [C] › a train or a part of a train that has beds in it

SUPPORT [C] UK (US railroad tie) › a piece of wood that is used to support a railway track (= the thing a train moves along on)

JEWELLERY [C] UK › a small gold or silver ring worn in the ear

(Definition of sleeper noun from the Cambridge Learner's Dictionary © Cambridge University Press)

something which threatens to cause problems or unhappiness in the future

Read our blog about how the English language behaves.

Find words and meanings that have just started to be used in English, and let us know what you think of them.