This is the 151st most frequent Czech word.
ním
The Czech word "ním" means "him" or "it" in the instrumental case.
In this sentence, 'ním' refers to the person accompanying the speaker, showcasing its use as the instrumental form of 'on'.
Šel jsem do kina s ním.
I went to the cinema with him.
Here, 'ním' is used to indicate the object of satisfaction, again as the instrumental case of 'on' to denote association.
Jsem spokojený s ním.
I am satisfied with him.
In this context, 'ním' highlights the person the speaker interacts with during the activity.