צָפוּף in inglese:

The dense fog made the building invisible.

And Copenhagen, although it's a dense city, is not dense compared with the really dense cities.

so dense he never understands anything I say to him

Plutonium is very dense.

Our plane couldn't land on account of the dense fog.

dense air

Mr Smith lost his way in the dense fog.

I've explained it three times already, why are you being so dense?

I pretended to be dense, looking down at the table.

dense= tightly packed

The air inside the cave is so dense it is hard to breathe

Fog can be very dense, especially druging late night

The two men went off very early this morning in order to avoid the dense traffic.

This city is an example of dense population. An example of dense is a city where a lot of people live in a very small area.

Dense bushes concealed him.