Simple Definition of guppy

from our Learner's Dictionary

guppy

noun

ˈgʌpi How to pronounce guppy (audio)
plural guppies
: a small tropical fish

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“Guppy.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/guppy. Accessed 22 Jun. 2026.

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