Definition of "trilby" [trilby]

• A soft felt hat with a deeply creased crown. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Racegoers in trilby's, murderers with torsos in cabin trunks."
• ""Most popular is our short-brimmed trilby, which is a young fashion take on a regular trilby.""
• "Note how Indy's has a wider brim, unlike the one on the left The one on the left is more like a trilby, which is essentially a fedora with a narrower brim."