This is the 6281st most frequent Russian word.
умерших
"Of the deceased" or "dead (plural, genitive case)."
In this sentence, 'умерших' is used as an adjective in the genitive plural form, referring to people who have passed away.
На кладбище собрались родственники умерших.
Relatives of the deceased gathered at the cemetery.
Here, 'умерших' describes the heroes who have passed away, serving as an attributive adjective.
Памятник был воздвигнут в честь умерших героев.
The monument was erected in honor of the fallen heroes.
In this example, 'умерших' is used to denote the people who are remembered, referring again to deceased individuals.