This is the 233rd most frequent Finnish word.
tiedossa
"Known" or "in knowledge."
In this sentence, the word 'tiedossa' refers to a scheduled or known event.
Tiedossa on suuri kokous huomenna.
There is a big meeting scheduled for tomorrow.
Here, 'tiedossa' means something that is known or in one's knowledge.
Onko sinulla tiedossa hyvä ravintola?
Do you know of a good restaurant?
In this context, 'tiedossa' refers to the information that is known or confirmed.