A word substitute for the sentence "A fault that can be forgiven" is "venial".
You will not be forgiven unless you apologise now.
Amnesty is a way for past criminals to be forgiven.
No, the word "substitute" should not be capitalized unless it appears at the beginning of a sentence.
Example sentence - She would have readily have forgiven him but he continued to be cruel so she left him.
I suspect my computer has developed a hardware fault.
relieve
The word "john" is a euphemism, or substitute, for the word "toilet."
The accident was the fault of the man who ran the stop sign.
In the game of Scrabble, you can use the word "exert" as a substitute for "apply effort".
A pronoun (he, she, it, him, her, we, us, etc.) can substitute for a noun in a sentence.
Sometimes accidents just happen and no one is at fault. It is never the child's fault when parents divorce.
Bob still insisted that Rosie's tripping on his banana peel was not his fault.