There are 2 definitions of bolster in English:

bolster1

Line breaks: bol|ster
Pronunciation: /ˈbəʊlstə
 
/

noun

1A long, thick pillow that is placed under other pillows for support.
More example sentences
  • Sessions were kept short or broken for comfort breaks so that she could be re-positioned with supporting pillows and bolsters.
  • Aside from formula, Nadiyah's parents have taken all her favorite items with them, including a pillow and a bolster, to help make the pilgrimage a rewarding experience for her.
  • They normally sat cross-legged on the floor, preferably on a carpet with bolsters or pillows.
Synonyms
2A part on a vehicle or tool providing structural support or reducing friction.
More example sentences
  • The modified double-ground blade and angular bolsters flow into a handle that fits the palm like a glove.
  • These screwdrivers had a forged one-piece tempered blade including a bolster and special wings on two sides.
  • The bolsters, handle. pivot pin and release mechanism all presented unique technical challenges.
2.1 Building A short timber cap over a post designed to increase the bearing of the beams it supports.

verb

[with object] Back to top  
1Support or strengthen: the fall in interest rates is starting to bolster confidence
More example sentences
  • If stress becomes apparent to the coach, he should attempt to bolster confidence with moral support.
  • While working to bolster this great strength, she also took its perceived weaknesses in hand.
  • To bolster their market strength today, producers must have the ability to do more than negotiate with the local canner or grocery store.
Synonyms
strengthen, support, reinforce, make stronger, boost, fortify, give a boost to; prop up, buoy up, shore up, hold up, maintain, buttress, brace, stiffen, uphold; aid, assist, help; supplement, augment, feed, add to, increase; revitalize, invigorate, renew, regenerate
2Provide (a seat) with padded support: (as adjective bolstered) I snuggled down into the heavily bolstered seat
More example sentences
  • The seats are well bolstered and leather trim is also available.

Origin

Old English, of Germanic origin; related to Dutch bolster and German Polster.

Derivatives

bolsterer

noun
More example sentences
  • Before his role as CEO, president and sentimental bolsterer, Bill Ford had made strides from within to bring Ford to a higher level of corporate responsibility.
  • Astronomy, geography, and ergonomics are the three scientific bolsterers of Chinese feng shui theory.
  • Animals also appear to serve as catalysts for learning, as sources of contact comfort, as outlets for nurturance, as models of positive social behavior, and as bolsterers of staff morale.

Definition of bolster in:

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Word of the day nous
Pronunciation: naʊs
noun
common sense; practical intelligence

There are 2 definitions of bolster in English:

bolster2

Line breaks: bol|ster
Pronunciation: /ˈbəʊlstə
 
/

noun

A heavy chisel used for cutting bricks.
More example sentences
  • ‘I began to knock the wooden fascia off using a bolster and hammer,’ said Mr Sparkes.
  • If you must cut a brick to an exact line, use the bolster.
  • Tap the bolster firmly with a club hammer to achieve the desired effect.

Origin

early 20th century: of unknown origin.

Definition of bolster in: