highchair

/ˈhaɪˌtʃɛr/
noun
  1. A tall chair with a tray and safety straps, used for feeding a baby or young child at a table.
    • We bought a new highchair for our daughter so she can sit with us at dinner.
    • The baby threw her spoon off the highchair tray during lunch.
    • Make sure the straps on the highchair are fastened securely before you walk away.