This is the 1514th most frequent Catalan word.
adonar
To realize or become aware of.
The word "adonar" here is used reflexively (adonar-se) to express the act of becoming aware or realizing something.
Vaig adonar-me que havia oblidat les claus.
I realized that I had forgotten the keys.
In this sentence, "adonar" is used transitively to mean making someone aware of something.
Cal adonar als joves la importància de cuidar el medi ambient.
It is necessary to make young people aware of the importance of caring for the environment.
Once again, "adonar" is used reflexively in the form "adonar-se" to signify realizing or noticing something.