Entry 2 senses Webster, 1913 marshy /(märsh"y̆)/ · marsh·y · IPA /ˈmɑɹʃi/ 01 a. Resembling a marsh; wet; boggy; fenny. 1. Resembling a marsh; wet; boggy; fenny. 2. Pertaining to, or produced in, marshes; as, a marshy weed.