This is the 119th most frequent Finnish word.
useita
"Useita" means "several" or "multiple" in English.
Here, 'useita' modifies 'ohjelmanumeroita', signifying a variety or number of segments present in the program at the event.
Tapahtumassa oli useita eri ohjelmanumeroita.
There were several different program segments at the event.
In this sentence, 'useita' is used with 'ihmisiä', indicating a non-specific number of people were at the celebration, emphasizing multiple participants.
Useita ihmisiä oli paikalla juhlimassa.
Several people were present celebrating.
The word 'useita' in this sentence is used as an adjective modifying the noun 'kirjoja', implying that the speaker has read multiple books that cannot be easily counted or are too many to specify.