tłok Englisch:

This shaft links with a piston.

It consists of two main parts: an outer casing, which is hollow but closed on one end, and the piston itself—a rod or plunger that fits the hole in the casing perfectly and whose tip reaches almost, but not quite, to the stoppered end of the tube.

plunger rod

Traffic congestion is always the heaviest during rush hours.

Traffic congestion contributes to air pollution.

It’s still remarkably easy to escape the congestion.

There's a lot of congestion on the motorway today.

if there is congestion, a place is too crowded with people or vehicles

There’s a lot of traffic congestion, especially at rush hour.

‘Road congestion always gets better in the summer when a lot of car drivers are on holiday.’

He had a nose congestion.

We were delayed by traffic congestion, so we had to hurry.

Our delay was due to traffic congestion.

In spite of the terrible congestion, I was in time for the appointment.