Definitions
1.nounA wooden block, the size of a brick, built into a wall, as a hold for the nails of woodwork.
2.nounOne of the square logs of wood used in a pile to support the roof of a mine.
3.nounA treenail to fasten the shores.
4.verbTo fill in, as between scantling, with brickwork.
5.verbTo fasten, as shores, with treenails.