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. as (i.e. in the role of), for (i.e. from the viewpoint of)
2. apart from... (used to change the topic)
3. even (e.g. "not even a single person")
4. thinking that..., trying to...