diamond (n.)

  1. a transparent piece of diamond that has been cut and polished and is valued as a precious gem

  2. very hard native crystalline carbon valued as a gem

    [ Syn: adamant , adamant ]

  3. a parallelogram with four equal sides; an oblique-angled equilateral parallelogram

    [ Syn: rhombus , rhomb ]

  4. a playing card in the minor suit that has one or more red rhombuses on it; he led a small diamond; diamonds were trumps'

  5. the area of a baseball field that is enclosed by 3 bases and home plate

    [ Syn: baseball diamond , infield ]

  6. the baseball playing field

    [ Syn: ball field , baseball field ]

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