2to 
/ˈtu:/ adverb
/ˈtu:/ adverb 1 : into a state of being awake or conscious
▪ He brought her to [=woke her up; made her conscious again] with smelling salts. ▪ He came to [=he became conscious] an hour after the accident. 2 chiefly Brit : into a position that is closed or almost closed
▪ The wind blew the door to.
▪ He brought her to [=woke her up; made her conscious again] with smelling salts. ▪ He came to [=he became conscious] an hour after the accident.
▪ The wind blew the door to.
to and fro
: forward and backward
▪ The baby rocked to and fro in the swing. : from one place to another ▪ The small boat was tossed to and fro by the waves.
▪ The baby rocked to and fro in the swing. : from one place to another ▪ The small boat was tossed to and fro by the waves.
