とする

1. 1to try to ... ; to be about to do ... Translated by Jiyomi
2. 2to decide to ...
3. 3to take as ; to treat as ; to regard as
4. 4to use for
5. 5to suppose that (such) is the case ; to assume
6. 6to decide that ; to think that
7. 7to make into ; to change into
8. 8to feel (e.g. after sound symbolism or psychological experience word) ; to look ; to feel like
9. 9to intend ; to have the intention

JMdict entry 2136890 · frequency rank 50. Source and licence.