Wiktionary
on line
prep.phr. (context US chiefly New York City English) On a queue; waiting one's turn for something.
Wikipedia
On Line
On_Line is a 2002 American drama film directed by Jed Weintrob and executive produced by Richard D. Titus and Tavin Marin Titus. The film was selected to world premiere at the Sundance Film Festival and was released theatrically, on DVD and television worldwide.
On Line (film)
On Line is a 2015 Chinese science fiction action film directed by Li Changxin. It was released on January 30, 2015.