As, because, since, through
1. In place of; instead of.
2. As the representative of.
3. In defense of; in favor of.
4. In honor of.
5. With the aim or for the purpose of.
6. For the purpose of going to.
7. In order to be, become, get, have, keep, etc.
8. In search of.
9. Meant to be received by (a specified person or thing), or to be used in (a specified way).
10. Suitable to; appropriate to.
He had been taking care of her
nearly a year now.