All 3 Uses

sheer
in
Delirium, by Lauren Oliver
(Auto-generated)

It's made of super-sheer plastic, and as I wrap it around my body, securing it at the waist with a knot, I'm fully aware that you can still see pretty much everything including the outline of my underwear—through its fabric.
p. 29.1 *

sheer = thin and transparent
But the idea is there, looming up solid and unavoidable, a sheer rock face: I could have stopped it.
p. 156.6 *

sheer = so steep it is almost vertical
Hana is just climbing out of her parents' car, her blond hair flying in wisps and waves around her face, her semi-sheer tunic slipping off one tan shoulder.†
p. 17.3 *

Definitions:

(1) (sheer as in: a sheer blouse)
typically of fabric: very thin and delicate -- often transparent
(2) (sheer as in: sheer fun)
complete or pure -- without restriction, qualification, or other elements (used for emphasis)
(3) (sheer as in: a sheer cliff)
so steep it is almost vertical
(4) (sheer as in: sheer to the left)
change direction; or to cause such a change of direction -- usually abruptly
(5) (meaning too rare to warrant focus)
Sheer can also be an alternative spelling for shear (to cut). Sheers can refer to light, transparent curtains.