Keywords: see, visit, understand
As a Verb or Adjective
To notice something with your eyes. English = see.
To go and see someone and spend some time with them. English = see, visit.
To understand what someone means or to understand why something happens. English = see, understand.
Used alone to tell your addressee you understand what they mean. English = 'I see!'
Used alone to tell your addressee that they should now be aware that what you said before was right because something has just happened that proves you were right. English = 'You see!'