Word.ws English Dictionary

first sleep

first sleep noun: synonym of dead sleep (“the first sleep of the night in a biphasic sleep pattern, before the watch”).

Noun

first sleep (plural first sleeps)

  1. Synonym of dead sleep (“the first sleep of the night in a biphasic sleep pattern, before the watch”)
    Synonyms:
    dead sleep

Synonyms of first sleep

Forms of first sleep

pluralfirst sleeps

Questions about first sleep

What does first sleep mean?
First sleep means synonym of dead sleep (“the first sleep of the night in a biphasic sleep pattern, before the watch”).
What part of speech is first sleep?
First sleep is a noun.
What is the plural of first sleep?
The plural of first sleep is first sleeps.

Words near first sleep in the dictionary

  1. first sergeants
  2. first session
  3. first sessions
  4. first shift
  5. first shifts
  6. first sleep
  7. first sleeps
  8. first slip
  9. first slips
  10. First Son
  11. First Sons

Source and license

Adapted from Wiktionary: first sleep (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “first sleep.” Word.ws, https://word.ws/first_sleep. Based on Wiktionary, CC BY-SA 4.0.