1. sink in(v = verb.cognition) click, come home, dawn, fall into place, get across, get through, penetrate - become clear or enter one's consciousness or emotions; "It dawned on him that she had betrayed him"; "she was penetrated with sorrow"
Sample sentences:
Something ----s
2. sink in(v = verb.contact) filter, percolate, permeate - pass through; "Water permeates sand easily"
is one way to penetrate, perforate
Sample sentences:
Something ----s; Something is ----ing PP