tihentyvät
Tihentyvät is a Finnish word that translates to "thickening" or "intensifying" in English. It is a verb form, specifically the third-person plural present indicative of the verb "tihentyä". This verb can be used to describe a variety of processes where something becomes denser, more frequent, or more profound.
For example, one might say that fog is "tihentyvä" if it is becoming denser and more opaque.