What is another word for sank in?
Pronunciation: [sˈaŋk ˈɪn] (IPA) 
"Sank in" is a phrasal verb that refers to the absorption or understanding of something, often with a gradual or profound effect. However, there are various synonyms that can be used to convey a similar meaning, including "penetrated," "soaked in," "registered," "comprehended," "absorbed," "internalized," "digested," and "assimilated." Each of these words implies a process of mental or emotional engagement, whereby something has an impact on our psyche or cognitive processes. For instance, if a realization finally "sinks in," we might say that it has "penetrated" our minds or "soaked in" over time. Similarly, a concept that is "absorbed" or "internalized" has become a part of our way of thinking or being.
