diamond

Everyday

1. A diamond is a very hard, clear, sparkling precious stone. tree →
2. A diamond is a shape with four equal sides standing on one of its corners, like ◊ — in maths called a rhombus. tree →
3. Diamonds is one of the four suits in a pack of cards, with red ◊ shapes. tree →
4. In baseball, the diamond is the field with four bases. tree →
5. Informally, calling someone a diamond means they are a kind, good person. tree →

In the lessons

In science, diamond is the hardest natural material and is made of carbon. In maths, a diamond shape is a rhombus (or a square turned on its corner). In everyday life: diamond rings, playing cards, kites. Phrases: «diamond ring», «diamond shape», «the seven of diamonds».

Examples

• She wore a ring with a small diamond. tree →
• Diamond is the hardest natural material on Earth. tree →
• Draw a diamond with four equal sides. tree →
• I picked the queen of diamonds. tree →
• The kite was shaped like a diamond. tree →
• Diamonds are dug out of the ground in mines. tree →
• The players ran around the baseball diamond. tree →
• ‘No doubt you are a diamond?’ tree →

Note

Pronounced «DY-mund» or «DY-a-mund». Countable: «a diamond», «diamonds». In maths, the proper name for the shape is «rhombus»: four equal sides, opposite sides parallel, opposite angles equal; a square is a special rhombus. A deck has 13 diamonds out of 52 cards (one quarter).

In Jewish tradition

A very hard stone used as a point for cutting, a picture of something that cannot be erased.

Interpretation. Jeremiah says Judah's sin is carved as if with a diamond point, which tradition reads as sin so deep it cannot be wiped away without repentance.

Examples

• The sin of Judah is written with a pen of iron, and with the point of a diamond; it is graven upon the tablet of their heart, and upon the horns of your altars. (Prophets JER.17.1, JPS 1917) tree →

Note

Pronounced «DY-mund» or «DY-a-mund». Countable: «a diamond», «diamonds». In maths, the proper name for the shape is «rhombus»: four equal sides, opposite sides parallel, opposite angles equal; a square is a special rhombus. A deck has 13 diamonds out of 52 cards (one quarter).