Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
community [kəˈmjuːnɪtɪ] n (public) обще́ственность f (within larger group) о́бщина
the business community деловы́е круги́ mpl
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.