Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
horror [ˈhɔrər] n (alarm) у́жас; (abhorrence) отвраще́ние; (of war) у́жасы mpl
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: