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surname vs. maiden name

[sur-neym, sur-neym, sur-neym] / ˈsɜrˌneɪm, ˈsɜrˌneɪm, sɜrˈneɪm /

noun

  1. Also called last name.  the name that a person has in common with other family members, as distinguished from a first name or given name; family name.

  2. a name added to a person's name, as one indicating a circumstance of birth or some characteristic or achievement; epithet.

verb (used with object)

surnamed, surnaming
  1. to give a surname to; call by a surname.

noun

  1. a woman's surname before her marriage.