hit the hay/sack
informalDefinition
› to go to bed in order to sleep: I've got a busy day tomorrow, so I think I'll hit the sack.Sleep and sleeping
(Definition of hit the hay/sack from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)
Browse related topics
You are looking at an entry to do with Animal physiology: sleep & sleeping, but you might be interested in these topics from the Animal & plant biology topic area:
- Animal & plant biology - general words
- Animal (non-human) behaviour
- Animal physiology: bodily fluids & their production
- Animal physiology: breathing & stopping breathing
- Animal physiology: excrement & its excretion
- Animal physiology: fat or well-built
- Animal physiology: fit & healthy
- Animal physiology: not sleeping & not unconscious
- Animal physiology: the respiratory system
- Animal physiology: thin or slender (of people)
- Animal physiology: urine & urinating
- Animal reproduction
- Bacteria, moulds, germs & viruses
- Cells
- Descriptions of animal (non-human) markings
- Genetics
- Immunology & vaccination
- Species & genders
- Zoology: ornithology & bird-watching
- Zoology: veterinary medicine
- Zoology: zoos & wildlife reserves
Browse the Thesaurus
SMART Thesaurus
Synonyms and related words:
- bye-byes noun
- catch/cop/get some z's idiom
- comatose adjective
- doss verb
- drift off phrasal verb
- flake out phrasal verb
- kip noun
- kip verb
- oversleep verb
- power nap noun
- retire verb (LEAVE A PLACE)
- shuteye noun
- sleep noun (NOT AWAKE)
- sleep over phrasal verb
- sleep verb
- slept verb
- snooze verb
- somnambulism noun
- sound adverb, adjective
- soundly adverb (SLEEP)
Our dictionaries
Word of the Day
Blog
Read our blog about how the English language behaves.
New Words
Find words and meanings that have just started to be used in English, and let us know what you think of them.
