catechism vs interrogatory

catechism and interrogatory both are nouns.

Word	Noun	Adjective	Verb	Adverb
catechism	Yes	No	No	No
interrogatory	Yes	Yes	No	No

As nouns, interrogatory is a hypernym of catechism; that is, interrogatory is a word with a broader meaning than catechism:

catechism: a series of questions put to an individual (such as a political candidate) to elicit their views
interrogatory: formal systematic questioning

Other hypernyms of catechism include examination, interrogation.

catechism (noun)	interrogatory (noun)
an elementary book summarizing the principles of a Christian religion; written as questions and answers	formal systematic questioning
a series of questions put to an individual (such as a political candidate) to elicit their views

catechism (adjective)	interrogatory (adjective)
	relating to the use of or having the nature of an interrogation