vt.

1. 減輕（刑罰等）[（+to）]
   His sentence was commuted from death to life imprisonment.

   他由死刑改判為終身監禁。

2. 用……交換（或代替）；交換[（+for/into）]
3. 改變，使變成[（+into）]
4. 折合；折償[（+into/for）]

vi.

1. （購用月票或季票）通勤[（+between/from/to）]
   She commutes between Chicago and Rockford every day.

   她每天通勤於芝加哥和洛克福之間。

2. 替代；代償
   commute with payment in place of labor

   出錢代償勞役

n.

1. 【口】通勤[C]
   It's a long commute from New York to Boston.

   從紐約通勤到波士頓路程很長。

v.

1. travel some distance between one's home and place of work on a regular basis.
2. reduce (a judicial sentence, especially a sentence of death) to a less severe one.
   ▸change one kind of payment or obligation for (another).
   ▸replace (an annuity or other series of payments) with a single payment.
3. Mathematics  (of two operations or quantities) have a commutative relation.