Definitions

1. noun

A type of hydrated silica gemstone, typically white or colorless but often having a play of colors, often used as a gemstone.

“The opal necklace sparkled on the bride’s neck.”

2. verb

To cover or make something opaque, typically with a layer or coating.

“The opal the window to block out the sunlight.”

3. adjective

Resembling or having the appearance of opal, typically having a play of colors.

“The opal-colored curtains added a touch of elegance to the room.”