What is the meaning of conformity?

noun

• Correspondence in form or appearance.
  • synonyms: conformance
• Acting according to certain accepted standards.
  • usage: "their financial statements are in conformity with generally accepted accounting practices"
  • synonyms: conformation, compliance, abidance
• Orthodoxy in thoughts and belief.
  • synonyms: conformism
• Concurrence of opinion.
  • usage: "we are in accord with your proposal"
  • synonyms: accord, accordance
• Hardened conventionality.
  • synonyms: ossification