In the merchant navy, the officer who is second in command to the captain, and whose primary duties include managing the maintenance and upkeep of the vessel.
A naval officer whose rank is above that of a lieutenant commander and below that of captain.
One who exercises control and direction of a military or naval organization.
A designation or rank in certain non-military organizations such as NASA and various police forces.
One who exercises control and direction over a group of persons.
A rank within an honorary order: e.g. Commander of the Legion of Honour.
Any of various nymphalid butterflies of the Asian genus Moduza.
A heavy beetle or wooden mallet, used in paving, in sail lofts, etc.