Bolster is defined as a long narrow cushion.(noun)
An example of a bolster is the cylinder shaped pillow that runs along the back of a couch.
The definition of a bolster is something that helps support weight.(noun)
An example of a bolster is a cross beam in a ceiling.
To bolster is to support or strengthen something.(verb)
An example of to bolster is to add another piece of wood to strengthen a bird house.
To bolster is to uplift.(verb)
An example of to bolster is lift someone’s spirits with a good speech.
See bolster in Webster's New World College Dictionary
Origin: ME & OE, akin to ON bolstr, Ger polster; ult. < IE base *bhel-, to swell: see ball
See bolster in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old English; see bhelgh- in Indo-European roots.
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