This is the 3781st most frequent Swedish word.
inse
To realize or understand.
Here, 'inse' is used to express coming to an understanding or realization of something significant.
Jag började inse vikten av regelbunden övning.
I started to realize the importance of regular practice.
In this sentence, 'inse' is used in its past tense form 'insåg' to show acknowledging or recognizing an error or state of affairs.
Hon insåg att hon hade gjort ett misstag.
She realized that she had made a mistake.
This usage of 'inse' conveys inviting another person to grasp or comprehend the extent or implication of something.