ha-ha (n.)

  1. a loud laugh that sounds like a horse neighing

    [ Syn: hee-haw , horselaugh , haw-haw ]

  2. a ditch with one side being a retaining wall; used to divide lands without defacing the landscape

    [ Syn: sunk fence , haw-haw ]

The dictionary is based on the WordNet Electronic Lexical Database.
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