Fault and Fault line

Fault noun - A defect in character.

Fault line and fault are semantically related In some cases you can replace phrase "Fault line" with "Fault", this terms are similar.

Nearby Words: faulty, faultless, faulted, faulting, faultily

Fault line noun - (geology) line determined by the intersection of a geological fault and the earth's surface.

Fault and fault line are semantically related in line of rock displacement topic. You can use "Fault" instead a noun phrase "Fault line".