The phrase "a catchword" is correct and usable in written English.
It can be used to refer to a word or phrase that is frequently used and often associated with a particular idea or concept.
Example: "In marketing, 'sustainability' has become a catchword that resonates with consumers."
Alternatives: "buzzword" or "keyword".
It's in that respect that Benghazi may become as much of a catchword as Bain.
It has become a slogan, a catchword epitomising the hope that governments can meet the profound needs of the moment.
Amy Davidson: One aspect of Iraqi culture that Steavenson explores is the idea of honor — honor, in particular, as a catchword for views of the women in a family.
(The Stripes' second album was called "De Stijl" — not exactly a catchword in the Delta — and for some live shows the stage backdrop is the band's red-and-white road cases: a touch of Mondrian).
We hold no brief for "featherbedding," a catchword with an aura of having been invented by a company public-relations man, or for "labor-sweating," a practice ascribed to management by the public-relations men for unions.
Since then, Sagra has become a catchword for a spate of violence around the country in which people have banded together to defend themselves in the absence of police protection.
But in Washington it's likely to turn out to be little more than a new catchword in a predictable drama of contracts, turf, and corporations, of agencies and military services intent on capturing taxpayer dollars and winning or losing intra-bureaucratic wars.
Theresa May has welcomed Philip Hammond's "prudent" approach to running Britain's economy, as he prepares to deliver his first autumn statement, reviving a favourite catchword of Gordon Brown's.
To entertain reservations about diversity as an unexamined catchword should not lead to exaggerations in the opposite extreme.
"It is a good business choice, but as a branding strategy is not a good choice," said Laurel Sutton, a principal at Catchword Branding, which helps companies come up with names.
In a new foreword, he wrote, "Now, at a time when we often lament the loss of a sense of place, and as 'sustainability' becomes an increasingly popular catchword in landscape design and management, this volume has a message that is as valid today as it was the day it was published".
