one year old

/wʌn jɪr oʊld/
adjective
  1. Having an age of one year.
    • The one-year-old puppy finally stopped chewing on furniture.
    • The one-year-old child took his first wobbly steps.
    • She bought a one-year-old car that was still under warranty.
noun
  1. A person or animal that is one year old.
    • Our cat is a playful one-year-old who loves to chase toys.
    • The one-year-old napped peacefully in the stroller.
    • The daycare has a separate room for the one-year-olds.
What does "one year old" mean? | whatsthatwordmean | whatsthatwordmean