1. A hat made of felt with a creased crown
   "The detective wore a classic trilby, tipping it slightly as he entered the room";
   - fedora, felt hat, homburg, Stetson

1. Singer in a novel by George du Maurier who was under the control of the hypnotist Svengali

Derived forms: trilbies

Type of: chapeau [archaic], character, fictional character, fictitious character, hat, lid [informal]

Encyclopedia: Trilby, or the Fairy of Argyll