catchword
/ˈkætʃˌwərd/Definitions
1. noun
a word or phrase that has become a popular or catch expression.
“The politician’s catchphrase became a catchword during the election campaign.”
2. noun
a phrase or word that represents or symbolizes something else.
“The logo of the company is a catchword for corporate branding.”
3. verb
to adopt or use a particular word or phrase as a catchword or slogan.
“The protest group began to catchword the slogan ‘equality for all’.”