Definition of "stiffener" [stiff•en•er]

• Anything added to something in order to stiffen it, such as a support beam, or starch for a collar. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "By and by it became a habit with him, when his men ceased work, to stroll down to the "Turk's Head" for a "stiffener" before his meal."
• "Ian Fleming was famous for enjoying a 'stiffener' here and we all know where his Martini habit led."
• "Send a self-addressed stamped envelope with a cardboard inside as a "stiffener" to prevent creases from the mail handling."