DUX
Etymology
Noun
dux (plural duxes or duces)
(UK, Australia, New Zealand) The top (male or female) academic student in a school, or in a year of school; the top student in a specified academic discipline.
(historical) A high-ranking commander in the Roman army, responsible for more than one legion.
(music) The subject of a fugue, answered by the comes.
Synonyms
• (top student): valedictorian
Anagrams
• UXD
Source: Wiktionary
Dux, n. Etym: [L., leader.] (Mus.)
Definition: The scholastic name for the theme or subject of a fugue, the
answer being called the comes, or companion.
Source: Webster’s Unabridged Dictionary 1913 Edition