Entry 3 senses · 2 variants Webster, 1913 Marish /(măr"ĭsh)/ · Mar·ish · IPA /ˈmaɹɪʃ/ n. a. 01 n. Low, wet ground; a marsh; a fen; a bog; a moor. 1. Low, wet ground; a marsh; a fen; a bog; a moor.[Archaic] 02 a. Moory; fenny; boggy. 1. Moory; fenny; boggy.[Archaic] 2. Growing in marshes.