Simple Definition of kiddo

from our Learner's Dictionary

kiddo

noun

ˈkɪdoʊ How to pronounce kiddo (audio)
plural kiddos
chiefly US, informal
—used by an adult to speak to a young person
Pay attention to me, kiddo, or you're going to get hurt!

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

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