1. to notice, to realize, to realise, to become aware (of), to perceive, to sense, to suspect
2. to regain consciousness, to come to (one's senses), to come round
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