1. to touch, to feel
2. to touch (with)
3. to experience, to come in contact with, to perceive
4. to touch on (a subject), to allude to, to refer to, to mention, to bring up
5. to be in conflict with, to violate (law, copyright, etc.), to infringe
6....
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), for, with
5. by, from
6. as (i.e. in the role of)
7. per, in, for, a (e.g. "once a month")
8. and, in addition to
9. if, although