This is the 515th most frequent Latvian word.
miruši
"Miruši" means "dead" in English.
In this sentence, 'mirušu' is an adjective in its genitive plural form, describing the noun 'koku' ('trees').
Mežā bija daudz mirušu koku.
There were many dead trees in the forest.
Here, 'miruši' is a plural masculine form of the past participle, used predicatively with the verb 'to be' to describe the state of being deceased.
Viņa vecāki ir miruši.
His parents are dead.
In this example, 'mirušie' serves as a nominative plural form referring directly to 'ziedi' ('flowers'), functioning as a substantivized adjective or a noun.