Avoirdupois and System of weights

Avoirdupois noun - A system of weights based on the 16-ounce pound (or 7,000 grains).

System of weights and avoirdupois are semantically related. In some cases you can use "System of weights" instead a noun "Avoirdupois".

System of weights noun - A system of units used to express the weight of something.

Avoirdupois and system of weights are semantically related. Sometimes you can replace term "Avoirdupois" with "System of weights", this terms are similar.