(US) A long-handled sledgehammer used with both hands

(slang, dated) A Cornishman.

An arch of the thickness of one brick.

(UK) One of the shorter rafters used in constructing a hip or valley roof.

(nautical) A block fixed in the topgallant or royal rigging, used for raising and lowering light masts and spars.

In a hip roof, a minor truss used where the roof does not have its full section.

copper sulphate

plural of jack-a-napes

plural of jack-a-lantern

In brewing and malt vinegar manufacture, a cistern which receives the wort.