high chair
US /ˈhaɪ ˌtʃer/
UK /ˈhaɪ ˌtʃer/
1.
a tall chair with a tray, designed for a baby or young child to sit in while eating
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We bought a new high chair for the baby.
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The toddler sat happily in her high chair, banging her spoon.
a tall chair with a tray, designed for a baby or young child to sit in while eating