sheer

1. A sheer curtain or fabric.

   Use sheers to maximize natural light.

1. Very thin or transparent.

   Her light, sheer dress caught everyone’s attention.

2. Pure in composition; unmixed; unadulterated.
3. (by extension) Downright; complete; pure.

   I think it is sheer genius to invent such a thing.

4. Used to emphasize the amount or degree of something.

   The army's sheer size made it impossible to resist.

5. Very steep; almost vertical or perpendicular.

   It was a sheer drop of 180 feet.

adverb

Clean; quite; at once.

1. The curve of the main deck or gunwale from bow to stern.
2. An abrupt swerve from the course of a ship.

1. To swerve from a course.

   A horse sheers at a bicycle.

2. To shear.