four year old

/ˈfɔrˌjɪrˈoʊld/
adjective
  1. Being four years of age.
    • They adopted a four-year-old cat from the shelter.
    • She has a four-year-old daughter who loves to draw.
    • The four-year-old car still runs perfectly.
noun
  1. A person or animal that is four years of age.
    • The preschool class is full of energetic four-year-olds.
    • Our dog is a four-year-old who still acts like a puppy.
    • The birthday party was for a cheerful four-year-old named Mia.
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