der Kessel

1. 1

   котёл

   a solid metal container or pot, often large, used to boil liquids: a kettle, cauldron, boiler, etc

   • Tom wartete, dass der Kessel kochte.

     Tom waited for the kettle to boil.

     Tatoeba · Pfirsichbaeumchen · CC BY 2.0 FR

   • Tom füllte den Kessel mit Wasser.

     Tom filled the kettle with water.

     Tatoeba · Pfirsichbaeumchen · CC BY 2.0 FR

2. 2

   котёл

   an area in which the enemy (or game) is encircled; a pocket or besieged area (by extension also the siege itself)

3. 3

   котёл

   the lair of certain animals such as fox, badger, rabbit, and wild boarредкое

Светлым шрифтом — формы, выведенные по обычным правилам склонения из именительного, родительного падежа и множественного числа.