1. a tall chair with long legs and usually a tray, used for feeding babies and small children

Examples

• The baby sat in her highchair eating cheerios.
• We need to buy a highchair before the baby starts eating solid food.
• He strapped his toddler into the wooden highchair.
• The restaurant provided a plastic highchair for our daughter.
• She wiped down the highchair tray after lunch.
• The highchair has safety straps to keep the child secure.