• more Thesaurus
  • Definition
    • bastion : A projecting part of a rampart or other fortification.

      • bastion : A well-fortified position; a stronghold or citadel.

        • bastion : A person, group, or thing, that strongly defends some principle.

          • bastion : Any large prominence; something that resembles a bastion in size and form.

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          • Derivative