Fault means a mistake or a weakness.(noun)
An example of fault is having a problem telling the truth.
Fault is defined as to blame or to commit a mistake.(verb)
The definition of a fault is a weakness in the rock strata that can shift and create an earthquake.(noun)
An example of fault is the San Andreas fault line in California.
See fault in Webster's New World College Dictionary
Origin: ME faute < OFr faulte, a lack < VL *fallita < *fallitus, for L falsus: see false
See fault in American Heritage Dictionary 4
Origin: Middle English faulte
Origin: , from Old French
Origin: , from Vulgar Latin *fallita
Origin: , from variant of Latin falsa
Origin: , feminine past participle of fallere, to deceive, fail.
top: normal fault
center: reverse fault
bottom: strike-slip fault
Learn more about fault