to

prep. toward; for; in contrast with; in order to

adv. toward the previous condition; in accordance with; in honor of; for the good health of (during a toast with drinks)

TO may stand for the following:In sports, turnover or time outTalk.OriginsTactics OgreToronto, "T" stands for Toronto, and "O" stands for Ontario. This is used by residents of the city as a mark of pride, and by many other Canadians (particularly western Canadians) as a term of mild contempt.The Office, a TV showThe Outsiders (novel), a novel by S.E. HintonThousand Oaks, CaliforniaPresident Airlines, IATA airline designatorTonga (ISO 3166-1 alpha-2 country code)Yugoslav Territorial Defense (TO) (see: Military of Yugoslavia)TakeoffTelephone operatorInternet Relay Chat slang for takeoverJEDEC transistor outlineTerrell Owens, NFL wide receiverTantra Online, MMORPGA medieval Terrae Orbis map
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.to is the Internet country code top-level domain (ccTLD) of the island kingdom of Tonga.The government of Tonga sells domains in its ccTLD to any interested party. Because to is a useful English preposition, it became popular to craft memorable URLs called domain hacks that take advantage of this, such as (bogus example) http://look.to/wikipedia or Refused's page.to/come.The .to ccTLD is administered by the Tonga Network Information Center (Tonic).
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TO, Turin, city in NW Italy

state in the Midwest region of Brazil

(prep.)
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.
  

(prep.)
In many phrases, and in connection with many other words, to has a pregnant meaning, or is used elliptically.
  

(prep.)
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.
  

(prep.)
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.
  

(prep.)
Extent; limit; degree of comprehension; inclusion as far as; as, they met us to the number of three hundred.
  

(prep.)
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.
  

(prep.)
Comparison; as, three is to nine as nine is to twenty-seven; it is ten to one that you will offend him.
  

(prep.)
Character; condition of being; purpose subserved or office filled.
  

(prep.)
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).
  

(prep.)
Apposition; connection; antithesis; opposition; as, they engaged hand to hand.
  

(prep.)
Addition; union; accumulation.
  

(prep.)
Accord; adaptation; as, an occupation to his taste; she has a husband to her mind.
  

(prep.)
Accompaniment; as, she sang to his guitar; they danced to the music of a piano.
  

(prep.)
An obsolete intensive prefix used in the formation of compound verbs; as in to-beat, to-break, to-hew, to-rend, to-tear. See these words in the Vocabulary. See the Note on All to, or All-to, under All, adv.