Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
counsel [ˈkaunsl] n (advice) сове́т; (lawyer) адвока́т, юриско́нсульт
vt
to counsel sth/sb to do сове́товать (посове́товать perf) что-н/ко́му-н +infin
counsel for the defence защи́тник
counsel for the prosecution обвини́тель m
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.