One who commutes (etymology 1).
To and from work and home.
Using public transport.
Normally a short form of commuter rail, commuter train or commuter bus; A transport system or a vehicle in such systems used to transport commuters (#2)
A person in the business of navigating ships or other vessels
Any of various nymphalid butterflies of the genera Neptis, Pseudoneptis and Phaedyma, having white markings on a dark base and commonly flying by gliding.
A member of the crew of a vessel; a mariner; a common seaman.
A person who sails sailing boats as a sport or recreation.
Someone knowledgeable in the practical management of ships.