Definitions
1.nounA unit of mass equal to 16 avoirdupois ounces (= 453.592 37 g). Today this value is the most common meaning of "pound" as a unit of weight.
2.nounA unit of mass equal to 12 troy ounces (≈ 373.242 g). Today, this is a common unit of weight when measuring precious metals, and is little used elsewhere.
3.nounThe symbol # (octothorpe, hash)
4.nounThe unit of currency used in the United Kingdom and its dependencies. It is divided into 100 pence.
5.nounAny of various units of currency used in Egypt and Lebanon, and formerly in the Republic of Ireland, Cyprus and Israel.
6.nounAny of various units of currency formerly used in the United States."the Rhode Island pound; the New Hampshire pound"
7.nounAbbreviation for pound-force, a unit of force/weight. Using this abbreviation to describe pound-force is inaccurate and unscientific.