Kiddo

//ˈkɪdoʊ// noun, slang

noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A close friend; especially used as a form of address. Australia, New-Zealand, Philippines, US, colloquial, endearing

    "Okay, kiddo, I gotta run."

  2. 2
    A child. Australia, New-Zealand, Philippines, US, colloquial, endearing

    "The books say it's normal. Toddlers often stop napping around this age, and the average amount of sleep needed by a two-year-old is between nine and thirteen hours. My kiddo cuts logs for twelve hours at a stretch, so she's plenty rested."

Example

More examples

"Kiddo! Two medium-size drafts here."

Etymology

From kid + -o; see kid (“child”).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.