Lens
Part of speech: verb
Definition: To film, shoot. To become thinner towards the edges.
Part of speech: noun
Definition: An object, usually made of glass, that focuses or defocuses the light that passes through it. A device which focuses or defocuses electron beams. A convex shape bounded by two circular arcs, joined at their endpoints, the corresponding concave shape being a lune. A genus of the legume family; its bean. The transparent crystalline structure in the eye. A way of looking, literally or figuratively, at something.
Lense
Part of speech: noun
Definition: (presumably a back-formation from the plural lenses)