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  • adj.vertical
  • verbprobe, go into

synonyms for plumb/plum

  • perpendicular
  • vertical
  • straight
  • upright
  • straight-up
  • up and down

antonyms for plumb/plum

MOST RELEVANT
  • horizontal
  • prone
  • flat
  • level
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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