Meaning of “bolster” in the English Dictionary

(Definition of “bolster” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"bolster" in American English

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bolsterverb [ T ]

us /ˈboʊl·stər/

bolster verb [ T ] (SUPPORT)

to support something, or make something stronger:

The UN is sending more troops to bolster the peacekeepers.

bolsternoun [ C ]

us /ˈboʊl·stər/

bolster noun [ C ] (OBJECT ON BED)

a long pillow (= cloth bag filled with material), usually shaped like a tube

(Definition of “bolster” from the Cambridge Academic Content Dictionary © Cambridge University Press)