catchline

American  

[kach-lahyn] / ˈkætʃˌlaɪn /

noun

1. a word, phrase, or sentence used, especially in advertising or journalism, to arouse or call attention.

2. a line in which a catchword appears.

3. a line of lesser importance, set shorter or sometimes in smaller type than the lines above and beneath it.

4. Theater. a line of comic dialogue expected to elicit laughter.

5. slug.

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Etymology

Origin of catchline

First recorded in 1865–70; catch + line ¹