Pronunciation: (ku-myOOt'), [key]
—v., -mut•ed, -mut•ing,
1. to change (a prison sentence or other penalty) to a less severe one: The death sentence was commuted to life imprisonment.
2. to exchange for another or for something else; give and take reciprocally; interchange.
3. to change: to commute base metal into gold.
4. to change (one kind of payment) into or for another, as by substitution.
1. to travel regularly over some distance, as from a suburb into a city and back: He commutes to work by train.
2. to make substitution.
3. to serve as a substitute.
4. to make a collective payment, esp. of a reduced amount, as an equivalent for a number of payments.
5. Math.to give the same result whether operating on the left or on the right.
1. a trip made by commuting: It's a long commute from his home to his office.
2. an act or instance of commuting.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.