This is the 45th most frequent Finnish word.
siihen
"Siihen" means "to it," "into it," or "onto it" in English, depending on context.
In this sentence, 'siihen' refers to a specific location being indicated, translating to 'there' in English.
Voitko laittaa kupin siihen?
Can you put the cup there?
Here, 'siihen' refers to the subject matter under discussion, acting as a demonstrative pronoun for 'it' or 'the topic'.
Se keskittyy siihen, kuinka ratkaista ongelma.
It focuses on how to solve the problem.
In this context, 'siihen' refers to a specific concept or idea mentioned earlier ('säähän', meaning 'weather') and emphasizes familiarity or habitual reference to it.