Webster's Revised Unabridged Dictionary · 1913

Behind

Behind ({not transcribed}) , preposition

[Anglo-Saxon behindan; pref. be- + hindan. See Hind, a.]

1.
On the side opposite the front or nearest part; on the back side of; at the back of; on the other side of; as, behind a door; behind a hill.
A tall Brabanter, behind whom I stood. — Bp. Hall
2.
Left after the departure of, whether this be by removing to a distance or by death.
A small part of what he left behind him. — Pope
3.
Left a distance by, in progress of improvement Hence: Inferior to in dignity, rank, knowledge, or excellence, or in any achievement.
I was not a whit behind the very chiefest apostles. — 2 Cor. xi. 5

Behind , adverb

1.
At the back part; in the rear.
I shall not lag behind. — Milton
2.
Toward the back part or rear; backward; as, to look behind.
3.
Not yet brought forward, produced, or exhibited to view; out of sight; remaining.
We can not be sure that there is no evidence behind. — Locke
4.
Backward in time or order of succession; past.
Forgetting those things which are behind. — Phil. ii. 13
5.
After the departure of another; as, to stay behind.
Leave not a rack behind. — Shakespeare

Behind , noun

The backside; the rump. [Low]