I guess "souterrain" would be the best option.
The underground is called "le métro" (short for "métropolitain", which isn't used any more) in French. However, outside of Paris, you should clarify by saying "le métro de Paris", especially if you are in a city with a different subterranean train system (subway/metro/underground).
The meaning of the saying 'I am so humbled' is that a person is flattered and is being made to feel modest of something. Another meaning is feeling undeserving of something.
Doing or saying something that is socially unacceptable.
Yes, I believe the French expression for this is double entendre.
MichelleLynn78: Did you mean legible? Legible means to have something valid- something you can decipher what something is saying or meaning.
faux pas
You can use the terms unearthing or digging up when saying something has been excavated. The word means that something was underground and then was unburied and brought out of the hole.
its saying your good at something but in all reality your not
"Oh chante" does not have a meaning in French for saying "nice to meet you." The correct phrase for "nice to meet you" in French is "enchanté(e)."
another word of saying that is:i am trying to explicate something to you
This is a Southern US saying meaning 'a whole lot of' something.
Personification is saying something that can't happen. For example, "he was as sick as a dog."