noun
1.
a. : the designation of a person recognized by the law as correct and sufficient and constituting under common law one given name followed by the family name and in modern times requiring or permitting one or more middle given names or initials in abbreviation thereof and upon the marriage of a female the substitution of her husband's family name for her maiden or former family name
b. : the designation of a firm or corporation similarly recognized by law
2. : a name by which a person, firm, or corporation is actually known in a community and which discloses true identity recognized as sufficient in legal matters or proceedings