This is the 3731st most frequent Polish word.
lis
Fox.
Here, 'lis' is a noun referring to a fox, an animal, used in the nominative case as the subject of the sentence.
Lis biega przez las.
The fox is running through the forest.
In this phrase, 'lis' is part of an idiomatic expression, symbolizing the cleverness typically attributed to foxes.
Sprytny jak lis.
Sly as a fox.
Here, 'lis' is in the genitive case as 'lisa', denoting 'of the fox,' showing the object being referred to in the drawing activity.