Fault can be used in the sentence as follows. I tried to blame my sister for the mess, but my mom knew it was my fault.
The broken window was her fault.
A word substitute for the sentence "A fault that can be forgiven" is "venial".
She made a big fault of dumping her boyfriend.
She was wonderful, save for a minor fault. The earthquake occured along a fault line.
I suspect my computer has developed a hardware fault.
The conflict of interest is at a no fault. The sentence should read "We had no fault for the car accident".
Sometimes accidents just happen and no one is at fault. It is never the child's fault when parents divorce.
The accident was the fault of the man who ran the stop sign.
After discovering the fuse had blown Jack replaced it and fixed the fault in the circuit.
He blamed me and said it was my fault. The reason why there are so many earthquakes in California is because the state lies on a fault.
He would oft apologize for things that were no fault of his own. The fault line often produced violent earthquakes.