Plz HELP!! {how to ask this?} erm.. is there a website for terms?

ok, i dont know wether my question is clear or not (probably not).. ok, like i want to write the term for : guilty for inflicting pain but i dont know what... is there a website that can help me? like thesaurus but instead or synonyms, it will give me terms? please help? i want a lot of words!