tieto

tieto

"These."

The word 'tieto' is a demonstrative adjective and is used here to describe specific books that are close to the speaker, in plural feminine form.

Tieto knihy sú veľmi zaujímavé.

These books are very interesting.

In this sentence, 'tieto' is again a demonstrative adjective indicating specific matters or tasks, in plural feminine form.

Tieto veci musíme vyriešiť dnes.

We have to resolve these things today.

Here, 'tieto' identifies particular 'domy' (houses), being demonstrative and in plural masculine animate form.

Vidím tieto domy na ulici.

I see these houses on the street.