frost (EN)
noun, verb

noun “frost”

sg. frost, pl. frosts or uncountable
  1. a thin layer of ice that forms on surfaces when the temperature drops below freezing
    When I woke up this morning, a delicate layer of frost covered the grass, making it sparkle in the sunlight.
  2. chilly weather
    There will be frost all over Europe this week.

verb “frost”

frost; he frosts; past frosted, part. frosted; ger. frosting
  1. to apply a layer of ice crystals onto a surface
    Overnight, the cold winter air frosted the windowpanes with a delicate layer of ice crystals.
  2. to develop a layer of ice crystals on a surface
    Overnight, the windows frosted over, leaving delicate patterns on the glass.
  3. to coat with icing
    For her birthday, I frosted the cupcakes with a thick layer of vanilla icing.