Commutable is a 10 letter English word. It's valid Words with friends word worth 24 points.
You can make 573 anagrams from letters in commutable (abcelmmotu).
1640-50; Latin commūtābilis, equivalent to commūtā(re) to commute + -bilis -ble
When we speak of a city we speak of the driving distance or the commutable distance to a city.
But you and I are commutable here; we can exchange places; and, as you go bail for my desk, so I can go bail for yours.