command vs commandant

command and commandant both are nouns.

Word	Noun	Adjective	Verb	Adverb
command	Yes	No	Yes	No
commandant	Yes	No	No	No

command (noun)	commandant (noun)
the power or authority to command	an officer in command of a military unit
availability for use
great skillfulness and knowledge of some subject or activity
an authoritative direction or instruction to do something
(computer science) a line of code written as part of a computer program
a military unit or region under the control of a single officer
a position of highest authority

command (verb)	commandant (verb)
make someone do something
be in command of
demand as one's due
exercise authoritative control or power over
look down on