This is the 13394th most frequent Polish word.
ośmiolatków
The word "ośmiolatków" in Polish means "of eight-year-olds" (genitive plural form).
In this sentence, 'ośmiolatków' refers to children who are eight years old.
Ośmiolatków zwykle interesują nowe gry komputerowe.
Eight-year-olds are usually interested in new computer games.
Here, 'ośmiolatków' is describing members of a group who are eight years old.
W dzisiejszej klasie mamy grupę ośmiolatków.
In today's class, we have a group of eight-year-olds.
In this sentence, 'ośmiolatków' specifies the children whose parents are being referenced.