This is the 5209th most frequent Russian word.
номинациях
"Categories" or "nominations."
The word "номинациях" here refers to categories or divisions within the context of a competition where participants can enter to compete.
Он участвовал в нескольких номинациях на этом конкурсе.
He participated in several categories in this competition.
In this sentence, "номинациях" indicates the groupings or classifications in which rewards will be distributed.
Награды будут вручены в различных номинациях.
Awards will be presented in various categories.
Here, "номинациях" again refers to the subdivisions or thematic areas of a contest where contenders can take part.