1. inside, interior
2. among, within
3. middle, center, centre
4. during, while, middle, midst, amid
5. interval, gap
6. mean, average
7. second (of three, e.g. sons, volumes), middle
8. medium grade, medium quality
9. red-light district
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
1. to put in, to let in, to take in, to bring in, to insert, to install (e.g. software), to set (a jewel, etc.), to ink in (e.g. tattoo)
2. to admit, to accept, to employ, to hire
3. to accept, to comply, to grant, to adopt (a policy, etc.), to take ...
