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frontiers

see definition of frontiers
  • nounboundary
  • noununexplored, unoccupied area of land
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Synonyms for frontiers

noun boundary
  • borderland
  • borderline
  • bound
  • confines
  • edge
  • limit
  • march
  • perimeter
  • verge

Antonyms for frontiers

  • center
  • inside
  • interior
  • middle
  • metropolis
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.