cameo

noun

1. A piece of jewelry, etc., carved in relief.

   “Aarfy's buxom trollop had vanished with her smutty cameo ring, and Nurse Duckett was ashamed of him because he had refused to fly more combat missions and would cause a scandal.”

2. A single very brief appearance, especially by a prominent celebrity in a movie or song.

   “Famous comic book writer Stan Lee had a cameo in the Spider-Man movie. He was on screen for perhaps ten seconds, but aficionados distinctly remember him.”

   “As they turned into Hertford Street they startled a robin from the poet's head on a barren fountain, and he fled away with a cameo note.”

   “Southgate will have been delighted to give Foden the first of many England caps while Greenwood will also have enjoyed his taste of international action during his cameo after coming on as a substitute for Kane.”

   “Dr. Helen O’Connell, Australia’s first female urologist, recalled that in her own medical training, the clitoris barely made a cameo.”

verb

1. To appear in a cameo role.