opening vs closing

opening and closing both are nouns.

Word	Noun	Adjective	Verb	Adverb
opening	Yes	Yes	No	No
closing	Yes	Yes	No	No

opening (noun)	closing (noun)
a recognized sequence of moves at the beginning of a game of chess	termination of operations
the act of opening something	the act of closing something
becoming open or being made open	a concluding action
the first of a series of actions	approaching a particular destination; a coming closer; a narrowing of a gap
a vacant or unobstructed space that is man-made	the last section of a communication
an entrance equipped with a hatch; especially a passageway between decks of a ship
an aperture or hole that opens into a bodily cavity
a possible alternative
the initial part of the introduction
the first performance (as of a theatrical production)
a ceremony accompanying the start of some enterprise
an open or empty space in or between things
opportunity especially for employment or promotion

opening (adjective)	closing (adjective)
first or beginning	final or ending