chiromancy vs divination

chiromancy and divination both are nouns.

Word	Noun	Adjective	Verb	Adverb
chiromancy	Yes	No	No	No
divination	Yes	No	No	No

As nouns, divination is a hypernym of chiromancy; that is, divination is a word with a broader meaning than chiromancy:

chiromancy: telling fortunes by lines on the palm of the hand
divination: the art or gift of prophecy (or the pretense of prophecy) by supernatural means

Other hypernyms of chiromancy include foretelling, fortune telling, soothsaying.

chiromancy (noun)	divination (noun)
telling fortunes by lines on the palm of the hand	the art or gift of prophecy (or the pretense of prophecy) by supernatural means
	a prediction uttered under divine inspiration
	successful conjecture by unusual insight or good luck