The opposite of opening would be closing or shutting.
The opposite of opening is closing.
The opposite of not opening is opening. Eight-letter synonyms for opening, depending on context, include clearing, unlacing, exposing, starting
closing
Opening
The word that means the opposite of opening and has a short vowel sound is "closing."
Closing
Shutting
One is shutting.
Mouth would not be the opposite of nose, because they have similarities as sense organs, and work together in breathing.If mouth has an opposite, it would be anus, because that is the opening at the opposite end of the alimentary canal.
The opposite of a Crescendo is a diminuendo (dim.) or decrescendo (decres.). It means gradually getting louder.
Arvo Ojala .
"Start of business" is the expression used for the opening of a Stock Exchange.
put hinges on opposite side and do the same with the doorjamb.