diamond

di-a-mond · noun

imported

Definitions

noun

  1. 1.

    A precious stone consisting of pure carbon, the hardest natural substance.

  2. 2.

    A shape with four equal sides forming two opposite acute and two opposite obtuse angles.

  3. 3.

    A baseball field or the area enclosed by the four bases.

  4. 4.

    A playing card of the suit marked with red diamond shapes.

  5. 5.

    Made of or decorated with diamonds.

Related words

See also: diamonds, gem, jewelry
Synonyms: gem, jewel, rock (informal)

Etymology

From Old French diamant, from Medieval Latin diamas, alteration of Latin adamas meaning "invincible," from Greek adamas (genitive adamantos) meaning "unconquerable," used to describe the hardest substance. First recorded in English in the 14th century.