diamond

diamond - English Dictionary

[ noun ]
■ the baseball playing field
→ ball field , baseball field

[ noun ]
■ the area of a baseball field that is enclosed by 3 bases and home plate
→ baseball diamond , infield

[ noun ]
■ a playing card in the minor suit that has one or more red rhombuses on it
e.g.)
・he led a small diamond
・diamonds were trumps

[ noun ]
■ a transparent piece of diamond that has been cut and polished and is valued as a precious gem

[ noun ]
■ a parallelogram with four equal sides
■ an oblique-angled equilateral parallelogram
→ rhomb , rhombus

[ noun ]
■ very hard native crystalline carbon valued as a gem
→ adamant