Thayer's Greek Lexicon

 1. to see with the eyes
2. to see with the mind, to perceive, know
3. to see, i.e. become acquainted with by experience, to experience
4. to see, to look to
  1) to take heed, beware
  2) to care for, pay heed to
5. I was seen, showed myself, appeared

For Synonyms see entry G5822