This is the 849th most frequent Finnish word.
kahdesta
"From two" or "of two."
In this context, 'kahdesta' introduces the two individuals the narrative focuses on, demonstrating its descriptive role.
Tarina kertoo kahdesta ystävästä, jotka matkustivat maailman ympäri.
The story tells of two friends who traveled around the world.
The word 'kahdesta' is used here in the elative case, indicating a choice or selection from two options.
Pidän enemmän kahdesta vaihtoehdosta.
I prefer one of the two options.
Here, 'kahdesta' is again in the elative case, describing the subject of the story, the two friends.