denier

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. One that denies: a denier of harsh realities.
2. n. A unit of fineness for rayon, nylon, and silk fibers, based on a standard mass per length of 1 gram per 9,000 meters of yarn.
3. n. A small coin of varying composition and value current in western Europe from the eighth century until the French Revolution.
4. n. Archaic A small, trifling sum.

Century Dictionary and Cyclopedia

1. n. One who denies or contradicts.
2. n. One who refuses or rejects.
3. n. One who disowns; one who refuses to own, avow, or acknowledge.
4. n. A silver coin (also called the norus denarius) introduced by the Carolingian dynasty into France, and soon issued, with varying types and legends, by other countries. It weighed about 22 grains, and was practically the sole silver coin of western Europe till the middle of the twelfth century. In England the corresponding silver coin was called a penny. The name denier d'Aquitaine was given by Edward III. of England to a silver coin (see cut above) struck for his French dominions.
5. n. A unit of weight in the French system, in use before 1812, equal to 19⅔ troy grains.
6. n. A unit of weight for silk yarns, equal to about 8⅕ troy grains.
7. To obtain the fineness or size of (a silk thread) in deniers.

Wiktionary

1. n. now historical An old French coin worth one-twelfth of a sou.
2. n. A unit of weight which indicates the fineness of fiber or yarn, equal to one gram per 9000 meters, used especially to measure or indicate the fineness of hosiery.
3. n. Person who denies something.

GNU Webster's 1913

1. n. One who denies.
2. n. A small copper coin of insignificant value.

WordNet 3.0

1. n. any of various former European coins of different denominations
2. n. one who denies
3. n. a unit of measurement for the fineness of silk or nylon or rayon