crystal

/ˈkrɪstəl/
noun
  1. A solid substance with a regular, repeating shape, often clear and shiny, like quartz or ice.
    • Geologists study how crystals form in different types of rock.
    • The snowflakes were tiny crystals that sparkled in the sunlight.
    • She placed a clear crystal on the windowsill to catch the light.
  2. High-quality glass that is very clear and often used for making expensive bowls, glasses, or decorations.
    • They drank champagne from elegant crystal glasses at the wedding.
    • The chandelier was made of fine crystal and glittered above the dining table.
    • She inherited a set of crystal vases from her grandmother.
  3. A transparent or translucent gemstone, especially one used in jewelry or for healing practices.
    • She wore a necklace with a rose quartz crystal around her neck.
    • The shop sold crystals of all colors, from amethyst to citrine.
    • Many people believe that carrying a crystal can bring good energy.
  4. The clear, hard material used in electronic devices, such as in watches or radios, that vibrates at a specific frequency.
    • The quartz crystal in the watch keeps the time accurate.
    • The engineer replaced the crystal in the circuit to fix the signal.
    • Old radios used a crystal to detect radio waves.
adjective
  1. Made of or resembling crystal; very clear and transparent.
    • The windows were crystal, letting in bright sunshine.
    • The lake was so calm that the water looked crystal clear.
    • She wore a crystal necklace that sparkled in the light.
  2. Very clear and easy to understand; obvious.
    • His explanation was crystal, so everyone understood the instructions.
    • The instructions on the box were crystal, with no confusing parts.
    • Her voice was crystal, carrying clearly across the room.
What does "crystal" mean? | whatsthatwordmean | whatsthatwordmean