hit the sack 1verbdomain: hygienePrinceton WordNet [ver.3.1]EnglishDefinitionprepare for sleepReport errorPath to highest hypernymMorphologySynset graphExamples1.He goes to bed at the crack of dawn2.I usually turn in at midnightSynonymsgo to bed 1turn in 4bed 5crawl in 1kip down 1hit the hay 1sack out 1go to sleep 1retire 11