TWIBIL

twibil. Twibil, n. a halberd, an iron tool used by paviers

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Twi″bil (?), n. [[AS. twibill; twi- (in comp.) two + bill, bil, an ax hoe, bill. See Twice, and Bill a cutting instrument.]] 1. 1. A kind of mattock, or ax; esp., a tool like a pickax, but having, instead of the points, flat terminations, one of which is parallel to the handle, the other perpendicular to it.
2. 2. A tool for making mortises.
3. 3. A reaping hook.