1. at (a time or place), in, on
2. in (a situation, matter, etc.), on (a point), when it comes to, regarding, with respect to, in (terms of), as to, as for
3. on the part of, under the authority of, in the name of
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