Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
superintendent [suːpərɪnˈtɛndənt] n (of place) заве́дующий*-ая] m(f)adj ; (of activity) руководи́тель(ница) m(f) ; (POLICE) нача́льник, надзира́тель m
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.