/,kɒmju:'teɪʃn; ,kɑmju`teʃən/
n
1 [C, U] replacement of one punishment by another that is less severe 减刑
*He appealed for
(a) commutation of the death sentence to life imprisonment. 他已上诉请求将死刑减为无期徒刑.
2 (a) [U] replacing one method of payment by another, eg a lump sum instead of a pension 变换付款方法（如以一次性总付款代替年金）.
(b) [C] payment made in this way 以上述方式付的款. commu`tation ticket (US) bus or train ticket valid for a fixed number of trips during a given period of time （公共汽车或火车的）长期车票. Cf 参看 season ticket (season).

n
[U and C]law
a reduction in how severe a punishment is
　Activists are campaigning for a commutation of Pollard's sentence.