This is the 924th most frequent Finnish word.
tietä
The Finnish word "tietä" means "road" or "way" (partitive case of "tie").
Here, 'tietä' is the partitive case of 'tie' (road), used to describe motion along a road as an object in the sentence.
Tietä pitkin kulki pyöräilijä.
A cyclist traveled along the road.
In this case, 'tietäisit' is a conditional form of the verb 'tietää' (to know), used here to inquire about knowledge hypothetically.
Voisitko kertoa, tietäisitkö tästä asiasta enemmän?
Could you tell me if you would know more about this matter?
Here, 'tietä' represents the partitive of 'tie' (path or way), used metaphorically to indicate a direction or consequence.