Definitions for knee-high
Random House Webster's College Dictionary
as high as the knees.
(n.)Also, knee′-hi`. a sock or stocking that reaches to just below the knees.
Origin of knee-high:
a sock or stocking that reaches up to just below the knees
up to the knees
"we were standing knee-deep in the water"
A sock or stocking that reaches to the knees.
Something that reaches to the height of one's knees.
The corn is knee-high.
Origin: From knee + high.
rising or reaching upward to the knees; as, the water is knee-high