cackle - definition and synonyms

verb [intransitive/transitive] 

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/ˈkæk(ə)l/
present tense
I/you/we/theycackle
he/she/itcackles
present participlecackling
past tensecackled
past participlecackled
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    to laugh in a loud, unpleasant, and sometimes unkind way
     Synonyms and related words