Definition of "guesting" []

• Present participle of guest. (verb)

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• "And rumour has it that Jason Leonard is 'guesting' for them."
• "When visiting or "guesting" it is custom to bring nan, if you don't have anything else to bring, but you must make sure to bring even numbers of non, not odd numbers."
• "Lisa Kudrow was a scream when she appeared on Cougar Town as a snarky dermatologist, and now Courteney Cox returns the Friends favor, guesting on Showtime's droll Web Therapy (11/10c) as an Internet psychic who turns to Fiona (Kudrow) for help."