go to sleep 1verbdomain: hygienePrinceton WordNet [ver.3.1]EnglishDefinitionprepare for sleepReport errorPath to highest hypernymMorphologySynset graphExamples1.I usually turn in at midnight2.He goes to bed at the crack of dawnSynonymsgo to bed 1turn in 4bed 5crawl in 1kip down 1hit the hay 1hit the sack 1sack out 1retire 11