to

(adverb): Toward a closed, touching or engaging position.
(adverb): Into the wind.
(preposition): Indicating destination: In the direction of, and arriving at.
(preposition): Used to indicate the target or recipient of an action.
(preposition): Used to indicate result of action.
(preposition): Used to indicate a resulting feeling or emotion.
(preposition): Used after an adjective to indicate its application.
(preposition): Denotes the end of a range.
(preposition): As a.
(preposition): Used to indicate a ratio or comparison.
(preposition): Used to indicate that the preceding term is to be raised to the power of the following value; indicates exponentiation.
(preposition): (time) Preceding.
(preposition): Used to describe what something consists of or contains.
(preposition): At.

Please push the door to.
We are walking to the shop.
He devoted himself to education.
His face was beaten to a pulp.
To everyone's great relief, the tuneless carol singers finally ceased their warbling.