A Conformity

1. The state of things being similar or identical.

Synonyms: homogeneity, uniformity

2. A point of resemblance; a similarity.
3. The state of being conforming, of complying with a set of rules, with a norm or standard.

Synonyms: compliance, conformance; conformity

4. The ideology of adhering to one standard or social uniformity.

Sometimes used interchangeably with conformation.

nonconformity