knock 5noundomain: activityPrinceton WordNet [ver.3.1]EnglishDefinitionthe act of hitting vigorouslyReport errorPath to highest hypernymMorphologySynset graphExamples1.he gave the table a whackSynonymsbelt 7the act of hitting vigorouslyrap 6the act of hitting vigorouslywhack 2the act of hitting vigorouslywhang 1the act of hitting vigorously