/kom'euhn dant", -dahnt", kom"euhn dant', -dahnt'/ , n.
1. the commanding officer of a place, group, etc.: the commandant of a naval base.
2. the title of the senior officer and head of the U.S. Marine Corps.
3. U.S. Army. a title generally given to the heads of military schools.
4. a commander.
[ 1680-90; commander to COMMAND; see -ANT ]