This is the 3764th most frequent Dutch word.
tiental
A group or set of ten.
Here, 'tiental' is used to approximate the number of students, meaning 'about ten.'
Een tiental leerlingen wachtte op de bus.
About ten students were waiting for the bus.
In this sentence, 'tiental' directly refers to ten of something, specifically apples.
Hij kocht een tiental appels op de markt.
He bought ten apples at the market.
Here, 'tiental' is in the plural form 'tientallen,' referring to a count range in tens, such as 'dozens.'