1 Cap of a door-cill or the bottom part of a door-frame.
2 Thin timber board, or threshold, sloping slightly on each side, fixed on the floor between the jambs.
3 Short length of structural timber fixed to the tops of two cruck blades, forming the flattened top to a ∧ shape, and providing a support for the ridge-piece.
4 Any ∧-shaped form suggesting a saddle in section, usually a splayed capping for a ridge or a cope-stone.
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