to release a person (from sin, guilt, a promise, duty etc)

free from responsibility, duty

to give a legal decision that a person is not guilty of an offense

announce removal of blame

to free, release a person (from blame etc)

excuse, clear of responsibility or blame

of forgive

stop blame and grant pardon

to say that one will not punish (a person) or be angry because of (a wrong action)

stop blame and grant pardon

to show that (a person, statement, act etc) is right, reasonable or proper

legitimize, substantiate

to make (air, water etc) pure or clean

free; make clean

to show or provide the truth, justice, validity etc of (something that has been attacked or disputed)

prove one's innocence