booster seat: meaning, definition, pronunciation and examples
B2neutral, everyday, common in parenting/family contexts
Quick answer
What does “booster seat” mean?
A portable child's seat placed on a chair to raise the child to a safe and comfortable height for eating at a table or traveling in a vehicle.
Audio
Pronunciation
Definition
Meaning and Definition
A portable child's seat placed on a chair to raise the child to a safe and comfortable height for eating at a table or traveling in a vehicle.
Any device or support designed to elevate a person to a higher position, often for functionality or safety; metaphorically, anything that gives a temporary or initial lift or boost.
Dialectal Variation
British vs American Usage
Differences
No major lexical difference. Both use 'booster seat'. 'Car seat' is a more general term for infant/toddler seats that may include integrated boosters. Usage is identical.
Connotations
Identical. Connotes child safety, parenting, practicality. Neutral object.
Frequency
Equally common in both varieties, with near-identical frequency due to standardised child safety regulations and product marketing.
Grammar
How to Use “booster seat” in a Sentence
VERB + booster seat: use, need, buy, install, place, secure, fasten, outgrowADJECTIVE + booster seat: high-back, backless, portable, car, plastic, child'sVocabulary
Collocations
Examples
Examples of “booster seat” in a Sentence
adjective
British English
- The booster-seat regulations have been updated. (hyphenated attributive use)
- It was a booster-seat issue.
American English
- The booster seat laws vary by state. (compound adjective use)
- We're in the booster seat phase of parenting.
Usage
Meaning in Context
Business
Used in retail, manufacturing, or marketing contexts related to child safety products. E.g., 'The booster seat segment saw 10% growth.'
Academic
Rare. May appear in studies on child injury prevention, ergonomics, or public health policy.
Everyday
Very common in family/parenting discussions, travel planning, and shopping. E.g., 'Don't forget the booster seat for the restaurant.'
Technical
Used in product design, safety standard specifications (e.g., FMVSS 213 in the US), and paediatric guidelines.
Watch out
Common Mistakes When Using “booster seat”
- Using 'booster' alone when clarity is needed (e.g., 'We need a booster' could be misconstrued as a vaccine).
- Confusing 'booster seat' with 'high chair' (which is for infants and has a tray).
- Incorrect plural: 'boosters seats' instead of 'booster seats'.
FAQ
Frequently Asked Questions
It depends on height, weight, and local law, not age. Typically, a child needs one until they are about 145cm tall (4'9") or 8-12 years old, when the adult seat belt fits properly across the shoulder and lap.
A high-back booster provides head and neck support, often necessary in vehicles without adequate headrests. A backless booster is more portable and suitable for vehicles with good head support. Both serve the primary function of positioning the seat belt.
Regulations vary by airline. Many allow approved car seats (including boosters) if they bear a certification label and fit the aircraft seat. Always check with the specific airline before travel.
It is consistently written as two separate words ('booster seat'), not hyphenated, except when used as a compound adjective before a noun (e.g., 'booster-seat regulations'), where hyphenation is sometimes used for clarity.
A portable child's seat placed on a chair to raise the child to a safe and comfortable height for eating at a table or traveling in a vehicle.
Booster seat is usually neutral, everyday, common in parenting/family contexts in register.
Booster seat: in British English it is pronounced /ˈbuːstə ˌsiːt/, and in American English it is pronounced /ˈbustər ˌsit/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a rocket BOOSTER that lifts it higher. A BOOSTER SEAT lifts a child higher to the table or into the correct position for a car seat belt.
Conceptual Metaphor
SUPPORT IS ELEVATION / SAFETY IS BEING PROPERLY POSITIONED.
Practice
Quiz
What is the primary function of a booster seat?