This is the 915th most frequent Slovenian word.
kolesarjev
The word "kolesarjev" in Slovenian means "cyclists" (genitive plural form).
In this example, 'kolesarjev' is in the genitive plural case, used to specify a group (genitive of class or member).
Vodnik je govoril o skupini kolesarjev, ki so kolesarili po hribih.
The guide talked about a group of cyclists who were cycling in the hills.
Here, 'kolesarjev' is used in the genitive plural case to denote the possession or association with 'many cyclists' in the sentence.
Na stari cesti je bilo veliko kolesarjev.
On the old road, there were many cyclists.
'Kolesarjev' in this instance is in the genitive plural case, required by the verb 'videl', which typically governs objects in the genitive when indicating a measure or some part of a whole.