mainstay (n.)

  1. a prominent supporter; he is a pillar of the community

    [ Syn: pillar ]

  2. a central cohesive source of support and stability; faith is his anchor; the keystone of campaign reform was the ban on soft money; he is the linchpin of this firm

    [ Syn: anchor , keystone , backbone , linchpin , lynchpin ]

  3. the forestay that braces the mainmast

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.