conformity

(noun) correspondence in form or appearance. Synonyms: conformance.

(noun) acting according to certain accepted standards. Synonyms: conformation, compliance, abidance. Examples: "Their financial statements are in conformity with generally accepted accounting practices."

(noun) orthodoxy in thoughts and belief. Synonyms: conformism.

(noun) concurrence of opinion. Synonyms: accord, accordance. Examples: "We are in accord with your proposal."

(noun) hardened conventionality. Synonyms: ossification.