Byword and Catchword

Byword noun - An often stated observation regarding something from common experience.

Catchword is a synonym for byword in saying topic. In some cases you can use "Catchword" instead a noun "Byword", when it comes to topics like slogan. popular alternative

Catchword noun - A word printed at the top of the page of a dictionary or other reference book to indicate the first or last item on that page.

Byword is a synonym for catchword in motto topic. You can use "Byword" instead a noun "Catchword". popular alternative