This is the 17957th most frequent Polish word.
ścisłej
"Ścisłej" means "more precise" or "strict" in English, depending on context.
The word 'ścisłej' here is used as an adjective in the genitive case and means 'rigorous', referring to the type of analysis required.
W kontekście matematyki wymagane jest ścisłej analizy danych.
In the context of mathematics, a rigorous analysis of the data is required.
In this sentence, 'ścisłej' is an adjective in the genitive case, meaning 'strict', describing 'secrecy'.
Spotkanie odbyło się w ścisłej tajemnicy.
The meeting took place in strict secrecy.
Here, 'ścisłej' as an adjective in the genitive case means 'close', qualifying the nature of the cooperation.