Pronunciation: (duks, dooks), [key]
—pl. du•cesPronunciation: (dOO'sēz, dyOO'-, dOO'kās), [key] dux•esPronunciation: (duk'siz, dook'-). [key]
1. Brit.the pupil who is academically first in a class or school.
2. (in the later Roman Empire) a military chief commanding the troops in a frontier province.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.