1. to board (a train, plane, etc.), to get into (a car), to get on (a bus), to go on board, to get aboard
2. to march into, to enter, to arrive (at, in)
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