'Sombrero' definitions:

Definition of 'Sombrero'

(from WordNet)
noun
One of the islands of Saint Christopher-Nevis
noun
A straw hat with a tall crown and broad brim; worn in American southwest and in Mexico

Definition of 'Sombrero'

From: GCIDE
  • Sombrero \Som*bre"ro\, n. [Sp., from sombra shade. See Sombre.] A kind of broad-brimmed hat, worn in Spain and in Spanish America. --Marryat. [1913 Webster]