と, in hiragana, or ト in katakana, is one of the Japanese kana, each of which represents one mora.
Both represent the sound [to], and when written with dakuten represent the sound [do].
In the Ainu language, the katakana ト can be written with a handakuten (which can be entered in a computer as either one character (ト゚) or two combined characters (ト゜) to represent the sound [tu], and is interchangeable with the katakana ツ゚.
The Katakana ト is made from two strokes: