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)
Traveller or worker who moves from one region or country to another.
A person who leaves one place in order to permanently settle in another.
A migratory animal, in particular a migratory bird.
Any of various pierid butterflies of the genus Catopsilia. Also called an emigrant.
Migratory.