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Pronunciation varies by accent · noun
(geology) The section of rock that extends below a diagonal fault line (the corresponding upper section being the hanging wall)..
Use footwall when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Footwall means (geology) The section of rock that extends below a diagonal fault line (the corresponding upper section being the hanging wall)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use footwall where its definition matches the intended context.
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