Distinguishing

[Sarah]

Constituting difference, or distinction from everything else;distinctive; peculiar; characteristic.The distinguishing doctrines of our holy religion. Locke.Distinguishing pennant (Naut.), a special pennant by which anyparticular vessel in a fleet is recognized and signaled. Simmonds.

[Vania]

Characteristic of one thing or person, so serving to identify it; distinctive.

[Agnes]

A distinguishing mark or feature is one that makes someone or something different from similar people or things: