comprehend vs understand

comprehend and understand both are verbs.

Word	Noun	Adjective	Verb	Adverb
comprehend	No	No	Yes	No
understand	No	No	Yes	No

As verbs, understand is a hypernym of comprehend; that is, understand is a word with a broader meaning than comprehend:

comprehend (verb)	understand (verb)
get the meaning of something	know and comprehend the nature or meaning of
to become aware of through the senses	perceive (an idea or situation) mentally
include in scope; include as part of something broader; have as one's sphere or territory	believe to be the case
	make sense of a language
	be understanding of