handbook vs enchiridion

handbook and enchiridion both are nouns.

Word	Noun	Adjective	Verb	Adverb
handbook	Yes	No	No	No
enchiridion	Yes	No	No	No

As nouns, handbook and enchiridion are synonyms defined as:

handbook and enchiridion: a concise reference book providing specific information about a subject or location

Other synonyms of handbook include vade mecum.

handbook (noun)	enchiridion (noun)
a concise reference book providing specific information about a subject or location	a concise reference book providing specific information about a subject or location