booster cushion

boost·er cush·ion

B b

Definition of booster cushion words

noun booster cushion an extra seat or cushion placed on an existing seat for a child to sit on in a car 3

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 92% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

This diagram is provided by Google Ngram Viewer

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