Denshi Jisho — Online Japanese dictionary

とする 1: to try to ...; to be about to do ...;
2: to decide to ...;
3: to take as; to treat as;
4: to use for;
5: to suppose that (such) is the case; to assume;
6: to decide that; to think that;
7: to make into; to change into;
8: to feel (e.g. after sound symbolism or psychological experience word); to look; to feel like;
9: to intend; to have the intention
Expression, Suru verb - irregular 
賭する とする to stake; to risk; to bet; to wager
Suru verb - special class 
とすると if we make ...; if we take ...; if we assume ...
Common word, Conjunction 

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