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bolster

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verb [transitive] bolster pronunciation in British English /ˈbəʊlstə(r)/ 
Word Forms
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present tense
I/you/we/theybolster
he/she/itbolsters
present participlebolstering
past tensebolstered
past participlebolstered

or bolster up bolster pronunciation in British English

Related dictionary definitions

  1. to make something stronger or more effective

    The campaign is designed to bolster the government's image as being tough on crime.

    His score will bolster his confidence for the next match.

pre-roll

a video advertisement that appears immediately before an online video

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