The Collaborative International Dictionary of English v.0.48:

Mascot \Mas"cot\, Mascotte \Mas"cotte\, n. [Through French fr.
   Pr. mascot a little sorcerer or magician, mascotto
   witchcraft, sorcery.]
   1. A person who is supposed to bring good luck to the
      household to which he or she belongs.
      [1913 Webster]

   2. Hence: Anything that brings good luck; especially, an
      animal kept by a group, as a sports team, to serve as a
      symbol and to bring luck.
      [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

mascot
    n 1: a person or animal that is adopted by a team or other group
         as a symbolic figure

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "mascot":
   amulet, charm, fetish, fylfot, gammadion, good-luck charm, hoodoo,
   juju, love charm, luck, lucky bean, lucky piece, madstone,
   mumbo jumbo, obeah, periapt, philter, phylactery, scarab,
   scarabaeus, scarabee, sudarium, swastika, talisman, veronica,
   voodoo, whammy



The Free On-line Dictionary of Computing (30 December 2018):

MASCOT

   Modular Approach to Software Construction Operation and Test:
   a method for software design aimed at real-time embedded
   systems from the Royal Signals and Research Establishment, UK.


U.S. Gazetteer Places (2000):

Mascot, TN -- U.S. Census Designated Place in Tennessee
   Population (2000):    2119
   Housing Units (2000): 934
   Land area (2000):     6.953397 sq. miles (18.009215 sq. km)
   Water area (2000):    0.165204 sq. miles (0.427876 sq. km)
   Total area (2000):    7.118601 sq. miles (18.437091 sq. km)
   FIPS code:            46400
   Located within:       Tennessee (TN), FIPS 47
   Location:             36.067257 N, 83.754678 W
   ZIP Codes (1990):     37806
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Mascot, TN
    Mascot