say it: hah-HAH
ha-ha is a noun meaning "a loud laugh that sounds like a horse neighing". It carries 2 recorded senses.
a loud laugh that sounds like a horse neighing
a ditch with one side being a retaining wall; used to divide lands without defacing the landscape
Definitions, synonyms and semantic relations for ha-ha come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.