Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
mockery [ˈmɔkərɪ] n издева́тельство
to make a mockery of sb/sth выставля́ть (вы́ставить*perf) кого́-н/что-н на посме́шище
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: