vespers vs canonical hour

vespers and canonical hour both are nouns.

Word	Noun	Adjective	Verb	Adverb
vespers	Yes	No	No	No
canonical hour	Yes	No	No	No

As nouns, canonical hour is a hypernym of vespers; that is, canonical hour is a word with a broader meaning than vespers:

vespers: the sixth of the seven canonical hours of the divine office; early evening; now often made a public service on Sundays
canonical hour: (Roman Catholic Church) one of seven specified times for prayer

vespers (noun)	canonical hour (noun)
the sixth of the seven canonical hours of the divine office; early evening; now often made a public service on Sundays	(Roman Catholic Church) one of seven specified times for prayer