Entry 2 senses · 2 variants Webster, 1913 Thwaite · IPA /ˈθweɪ̯t/ n. n. 01 n. The twaite. 1. The twaite.(Zool.) 02 n. Forest land cleared, and converted to tillage; an assart. 1. Forest land cleared, and converted to tillage; an assart.[Obs. or Prov. Eng.]