Moins is usually used with another musical term. Moins means "less" in French and so basically moins "something" means less of it.
pit terms
Moins means "less" or "minus"or "take away"
A musical score or the process of creating a musical score.
20 minus vingt= 20 moins= minus
Slow
it means no to the no
moins
In musical terms, rinforzando means reinforced.
layers of sound
Really quiet
"Pace"
Quasi is an Italian musical term meaning: As if, resembling