Simple Definition of megastar

from our Learner's Dictionary

megastar

noun

ˈmɛgəˌstɑɚ How to pronounce megastar (audio)
plural megastars
informal : a very famous and successful performer (such as an actor or an athlete)

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“Megastar.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/megastar. Accessed 14 Apr. 2026.

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