booster seat
noun
: a portable seat that is placed on or attached to a chair or an automobile seat in order to raise a child to a higher position
… they should use a booster seat until they are 8 years old or at least 4 feet, 9 inches tall. Only after that can they ride in the front seat, and even then the back is always safer.—
Denise Milosevich
Denise MilosevichShe's too big for a high chair, but needs to sit on her knees to keep her head fully above the dining room table. And she doesn't want a booster seat. She'll boost herself, thank you very much.—Dave Manley
Dave Manleycalled also booster chair
Examples of booster seat in a Sentence
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Dog food, beds, harnesses and more on sale Dog owners know expenses pile up quickly, so shop now to save on items like PupGum, a treat that's both irresistible to dogs and fantastic for their dental health, to Lesure's cozy dog booster seat, a must-have for any canine on a road trip.
—Kelsey Legg, ABC News, 12 May 2026
Kayce was not in a car seat or booster seat, Upper Pine Chief Bruce Evans also told the outlet.
—Charna Flam, PEOPLE, 12 May 2026
Car Seats Car seats and booster seats have an expiration date after which they cannot be sold.
—Brandee Gruener, Southern Living, 26 Apr. 2026
For instance, Florida lawmakers are actively considering bills to raise the booster seat age requirement from 5 to 8, reflecting a continued push for stronger child passenger safety measures.
—Ethan Stone, Miami Herald, 15 Apr. 2026
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Kelsey Legg, ABC News, 12 May 2026
Kayce was not in a car seat or booster seat, Upper Pine Chief Bruce Evans also told the outlet.
—Charna Flam, PEOPLE, 12 May 2026
Car Seats Car seats and booster seats have an expiration date after which they cannot be sold.
—Brandee Gruener, Southern Living, 26 Apr. 2026
For instance, Florida lawmakers are actively considering bills to raise the booster seat age requirement from 5 to 8, reflecting a continued push for stronger child passenger safety measures.
—Ethan Stone, Miami Herald, 15 Apr. 2026
See All Example Sentences for booster seat
Cite this Entry
“Booster seat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/booster%20seat. Accessed 21 May. 2026.
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