necessitate vs involve

necessitate and involve both are verbs.

Word	Noun	Adjective	Verb	Adverb
necessitate	No	No	Yes	No
involve	No	No	Yes	No

As verbs, necessitate and involve are synonyms defined as:

Other synonyms of necessitate include ask, call for, demand, need, postulate, require, take.

necessitate (verb)	involve (verb)
require as useful, just, or proper	make complex or intricate or complicated
cause to be a concomitant	occupy or engage the interest of
	have as a necessary feature
	connect closely and often incriminatingly
	contain as a part
	engage as a participant
	require as useful, just, or proper