Part of speech: verb

To prop up; aid; abet.

Part of speech: noun

A long under pillow for a bed.

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Usage examples "bolster":

  1. The cartridge which holds this powder is a pillow, an absolute bolster, of some three feet in length and twelve inches in diameter. - "In the Track of the Troops", R.M. Ballantyne.
  2. It is true, however, that tall people do find the old- fashioned German bedsteads short; and it is true that the big square downy pillows are supported by a wedge- shaped bolster called a Keilkissen. - "Home Life in Germany", Mrs. Alfred Sidgwick.
  3. More reserves came dashing out from the side lines to help bolster a Grinnell forward wall which had taken plenty of punishment. - "Interference and Other Football Stories", Harold M. Sherman.