Usages of gagnvirkur
Leikurinn er gagnvirkur, eins og ég væri þar inni.
The game is interactive, as if I were in there.
Þetta er svo gagnvirkt, eins og við værum inni í sögunni.
This is so interactive, as if we were inside the story.
Elon.io is an online learning platform
We have an entire course teaching Icelandic grammar and vocabulary.