com·mute / kəˈmyoōt/ • v. 1. [intr.] travel some distance between one's home and place of work on a regular basis: she commuted from Westport in to Grand Central Station. 2. [tr.] reduce (a judicial sentence, esp. a sentence of death) to one less severe. ∎ (commute something for/into) change one kind of payment or obligation for (another). ∎ replace (an annuity or other series of payments) with a single payment. 3. [intr.] Math. (of two operations or quantities) have a commutative relationship. • n. a regular journey of some distance to and from one's place of work. DERIVATIVES: com·mut·er n. (in sense 1).