reverse split vs reduction

reverse split and reduction both are nouns.

Word	Noun	Adjective	Verb	Adverb
reverse split	Yes	No	No	No
reduction	Yes	No	No	No

As nouns, reduction is a hypernym of reverse split; that is, reduction is a word with a broader meaning than reverse split:

reverse split: a decrease in the number of outstanding shares of a corporation without changing the shareholders' equity
reduction: the act of decreasing or reducing something

Other hypernyms of reverse split include decrease, diminution, step-down.

reverse split (noun)	reduction (noun)
a decrease in the number of outstanding shares of a corporation without changing the shareholders' equity	the act of decreasing or reducing something
	the act of reducing complexity
	any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent