1. (preposition)to indicates the infinitive form of a verb Would you like to eat now?; I have to leave.
2. to indicates the aim of an action He's coming over to fix the fence.
3. to indicates where sb or sth is going He walked to his car.; a plane going to Phoenix
4. to indicates the person or thing affected by an action He gave the letter to his mother.; I described the man to the police officer.
5. to indicates the position sb or sth is in or the direction they are facing It's a door to the left after the bathroom.; Wave to Mommy.
6. to indicates where sth is attached a note stuck to the wall
7. to until a time or until sth happens How many days is it to Halloween?; The pool from 10 a.m. to 7 p.m. FRE verbe?; It's 8 minutes to 9:00.
8. to indicates sb's opinion or feeling about sth It's really important to me.
9. to indicates a comparison or relationship They're leading 4 goals to 2.; We compared dieting to exercise, and exercise was better.
10. to indicates sth is needed for sth else the solution to the problem; the key to my jewellery box
11. to indicates a particular reaction to sth To my horror, my car was gone.
12. to to and fro backward and forward a boy swinging to and fro
Definition of 'to'
Webster Dictionary
1. to the preposition to primarily indicates approach and arrival, motion made in the direction of a place or thing and attaining it, access; and also, motion or tendency without arrival; movement toward; -- opposed to from
2. to hence, it indicates motion, course, or tendency toward a time, a state or condition, an aim, or anything capable of being regarded as a limit to a tendency, movement, or action; as, he is going to a trade; he is rising to wealth and honor
3. to in a very general way, and with innumerable varieties of application, to connects transitive verbs with their remoter or indirect object, and adjectives, nouns, and neuter or passive verbs with a following noun which limits their action. Its sphere verges upon that of for, but it contains less the idea of design or appropriation; as, these remarks were addressed to a large audience; let us keep this seat to ourselves; a substance sweet to the taste; an event painful to the mind; duty to God and to our parents; a dislike to spirituous liquor
4. to as sign of the infinitive, to had originally the use of last defined, governing the infinitive as a verbal noun, and connecting it as indirect object with a preceding verb or adjective; thus, ready to go, i.e., ready unto going; good to eat, i.e., good for eating; I do my utmost to lead my life pleasantly. But it has come to be the almost constant prefix to the infinitive, even in situations where it has no prepositional meaning, as where the infinitive is direct object or subject; thus, I love to learn, i.e., I love learning; to die for one's country is noble, i.e., the dying for one's country. Where the infinitive denotes the design or purpose, good usage formerly allowed the prefixing of for to the to; as, what went ye out for see? (Matt. xi. 8)
5. to in many phrases, and in connection with many other words, to has a pregnant meaning, or is used elliptically
6. to extent; limit; degree of comprehension; inclusion as far as; as, they met us to the number of three hundred
7. to effect; end; consequence; as, the prince was flattered to his ruin; he engaged in a war to his cost; violent factions exist to the prejudice of the state
8. to apposition; connection; antithesis; opposition; as, they engaged hand to hand
9. to accord; adaptation; as, an occupation to his taste; she has a husband to her mind
10. to comparison; as, three is to nine as nine is to twenty-seven; it is ten to one that you will offend him
11. to addition; union; accumulation
12. to accompaniment; as, she sang to his guitar; they danced to the music of a piano
13. to character; condition of being; purpose subserved or office filled