ounce

1. Fabric density: Expressed as ounces per square yard (oz/yd2), it equals 33.90 grams per square meter (gsm). It is also expressed as ounces per linear yard for a particular width: for a fabric with 60 inch width, one ounce per linear yard equals 31 grams per linear meter.

2. Weight: One-sixteenth of a pound or about 28.35 grams. Also called avoirdupois ounce, it equals 0.91 troy ounce.

3. Volume: See also fluid ounce.