rille

In a sentence

• Rillen i skivan gjorde att nålen inte hoppade.

  The groove in the record made the needle not jump.

  Here, 'rille' refers to a physical groove found in a vinyl record that guides the needle.

• Han studerade de små rillorna i metallstycket noggrant.

  He studied the small grooves in the metal piece carefully.

  In this sentence, 'rillor' is used to denote small grooves or channels on the surface of a metal object.

• Floden hade utskurit rillor i bergväggen över tiden.

  The river had carved grooves in the cliff face over time.

  Here, 'rillor' describes natural grooves or channels formed by the river's erosion activity in rock.