Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
grease [griːs] n (lubricant) сма́зка#; (fat) жир#
vt сма́зывать (сма́зать*perf)
to grease sb's palm (fig) дава́ть*(дать*perf) кому́-н взя́тку
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.