This is the 9085th most frequent German word.
linse
Lens.
'Linse' refers to a lens in optical devices like cameras.
Die Linse in der Kamera ist sehr scharf.
The lens in the camera is very sharp.
'Linse' in plural, 'Linsen', refers to the lentil legume, often used in cooking.
Er hat eine warme Linsensuppe gekocht.
He cooked a warm lentil soup.
'Linse' here describes the natural lens in the human eye, part of the optical system.