Booster Seat: Definition, Examples & Safety Guide

Meaning 1：child booster seat (Booster seat)

Booster seat 🔊

/ˈbuːstər siːt/

A seat that raises a child higher so they can use a seat belt safely or sit properly at a table.

Child in booster seat at dining table eating breakfast with family

child booster seat 🔊

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/tʃaɪld ˈbuːstər siːt/

A portable seat designed to elevate a child so that they can safely use adult seat belts and reach the table.

📁 Category：Objects & Materials 🔖 Level：Beginner

📘 Details & Usage

📖 Root Explanation

Boost (to push up) + -er (agent) + seat (sitting place).

💡 Mnemonic

Imagine a booster rocket lifting your child to perfect dining height. Boost + seat = booster seat!

📖 Example

When we drive to grandma's house, my sister sits in her booster seat so she can see out the window and the seat belt fits well. 🔊 When we drive to grandma's house, my sister sits in her booster seat so she can see out the window and the seat belt fits well.

🔗 Collocations

car booster seat – A booster seat designed specifically for use in vehicles.

portable booster seat – A lightweight booster seat that can be easily carried and used in different locations.

booster seat cushion – A padded add-on that raises a child's seating position.

🔄 Synonyms

car seat (n.) – A seat designed to secure a child in a vehicle, often including a booster function.

child seat (n.) – Any seat specifically made for children, including booster seats.

safety seat (n.) – A general term for child restraint systems that ensure safety during travel.

🌱 Derivatives

boost (v.) – To lift or increase.

seating (n.) – The arrangement of seats.

booster (n.) – A person or thing that boosts.

📖 Cultural Story

The term emerged in the early 20th century with automobile safety. It describes a seat that boosts a child's height for proper seat belt use—practical evolution, no ancient myth.