1. noun /bɪl/
a) Any of various bladed or pointed hand weapons, originally designating an Anglo-Saxon sword, and later a weapon of infantry, especially in the 14th and 15th centuries. A common form of bill consisted of a broad, heavy, double-edged, hook-shaped blade, having a short pike at the back and another at the top, and attached to the end of a long staff.
France had no infantry that dared to face the English bows and bills. — .
b) A cutting instrument, with hook-shaped point, and fitted with a handle, used in pruning, etc.; a billhook.
2. verb /bɪl/
a) To dig, chop, etc., with a bill.
b) To stroke bill against bill, with reference to doves; to caress in fondness.
Wikipedia foundation.