Commander

Pronunciation

Origin

From Old French comandeor, from comander. See command.

Full definition of commander

Noun

1. One who exercises control and direction of a military or naval organization.
2. A naval officer whose rank is above that of a lieutenant commander and below that of captain.
3. One who exercises control and direction over a group of persons.
4. A designation or rank in certain non-military organizations such as NASA and various police forces.
5. (obsolete) The chief officer of a commandry.
6. A heavy beetle or wooden mallet, used in paving, in sail lofts, etc.