n (weapons) A medievalpolearm with a similar construct, fitted to a long handle, sometimes with an L-shaped tine or a spike protruding from the side or the end of the blade for tackling the opponent; a bill
n Written as bill-hook: a part of the knotting mechanism in a reaper-binder or baler (agricultural machinery).
n Written as bill hook: a spiked hook used in offices and shops for hanging bills or other small papers such as receipts.