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pillar - definition and synonyms

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noun [countable] pillar pronunciation in American English /ˈpɪlər/
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singularpillar
pluralpillars
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  1. 1
    a thick strong upright post that supports part of a building
    an altar standing on marble pillars
    1. a.
      something that is tall and thin
      pillar of: a pillar of rock/smoke
  2. 2
    formal someone who is important and respected within a group
    a pillar of society/the community/the establishment: Mr. Henderson is a pillar of the community.
    1. a.
      someone who has a strong character and helps or supports other people
      a pillar of strength/support: You’ve been a pillar of strength for me.
  3. 3
    an important idea, principle, or belief
    pillar of: The treaty is a pillar of arms control in the nuclear age.

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hypocaust

an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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