This is the 705th most frequent Finnish word.
tätä
The Finnish word "tätä" means "this" in the partitive case.
'Tätä' modifies 'this project' in the context of an activity that is being discussed.
Kenen kanssa toimit tässä projektissa?
With whom are you working on this project?
In this sentence, 'tätä' (in the form 'tästä') is used to indicate something specific that is being liked, with the verb 'pitää'.
Pidän tästä kirjasta.
I like this book.
Here, 'tätä' is used in its form 'tästä,' a case form indicating 'about this.' The word refers to the specific item 'book' that is being liked.