ordination vs ordinance

ordination and ordinance both are nouns.

Word	Noun	Adjective	Verb	Adverb
ordination	Yes	No	No	No
ordinance	Yes	No	No	No

As nouns, ordination and ordinance are synonyms defined as:

ordination and ordinance: the act of ordaining; the act of conferring (or receiving) holy orders

ordination (noun)	ordinance (noun)
the act of ordaining; the act of conferring (or receiving) holy orders	the act of ordaining; the act of conferring (or receiving) holy orders
logical or comprehensible arrangement of separate elements	an authoritative command
the status of being ordained to a sacred office	a statute enacted by a city government