This is the 976th most frequent Azerbaijani word.
pis
"Pis" means "bad" in English.
The word 'pis' is used here as an adjective to describe the noun 'hava' (weather), meaning 'bad' or 'poor' quality.
Bu hava çox pisdir.
This weather is very bad.
In this case, 'pis' is used as an adjective to describe a person, implying moral or behavioral 'badness'.
O, pis bir insan deyil.
He/She is not a bad person.
Here, 'pis' is used as an adverb ('pis oynamaq'), referring to the manner of playing, meaning 'in a bad way' or 'poorly'.