Skip to main content
sleeper

sleeper

1 6.3
A heavy beam placed under railway rails to hold them in place
  • noun
  • /ˈsliːpər/
  • UK
translation icon : traviesa
  • Their territory was a concrete peninsula, stretching out amidst the converging rails to that neglected part of the station where, in summer, wild lupine sprang up between the sleepers.
  • nail the sleepers
  • sleeper and plate

Let's wrap these sleepers up, you know, so we know that they're not going to be a problem.

Examples

  • The well was usually covered with railway sleepers, but I had left it open because I was about to start work renovating the mouth.

    Fiction book (2002)
  • The workers replaced old wooden sleepers with new concrete ones to improve track stability.

  • The sleepers pin down the rail and the ballast locks the sleepers in place.

  • As we walked along the train tracks, we noticed several sleepers supporting the rails beneath us.

  • The railway construction crew installed new sleepers to ensure safe and smooth train travel.

Synonyms

tie
vssleeper
  • Specialized
12 7.9

A strong beam placed across a building to stop parts moving apart

is limited to beams placed under railway tracks to support rails
railroad tie
vssleeper
  • Specialized
2 4.1

A heavy wooden or concrete beam laid across railway tracks to hold rails in place

is used in British English rather than the American name
crosstie
vssleeper
  • Specialized
7.5

A heavy wooden or concrete beam that lies across railroad tracks to hold the rails in place

focuses on supporting and keeping rails firmly in place

Compounds

6 8.9

A secret group of people who stay inactive until told to attack or spy

7.1

A person who sleeps outside because they have no home

sleeper cell
  • Specialized
7.5

A hidden program in a computer network that stays inactive until activated to do harm

sleeper goby
  • Australian
9.5

A small tropical fish that rests quietly on the shallow sandy bottom

9.9

A hidden group of people who stay inactive until they get orders to do illegal or violent acts

Surface Forms

sleeper singular
sleepers plural
railroad tie singular
railway tie singular

Morphology

sleeper = sleep (opaque) = sleep + er

Although formed from 'sleep' + '-er', the specialized meaning 'railway sleeper / railroad tie' is not derivable from the components.

Etymology

Sleeper for the beam under railway tracks comes from the root sleep 'to rest'. A helpful way to remember it is to think of the beam as 'lying' under the rails like it is sleeping while it holds them in place.