If you dream of the giant, then such dream indicates the problems between you and those around you in waking life. Perhaps there is some barrier that you find difficult to overcome. On the other hand, the giant could indicate some aspect of your personality that takes the lead. Maybe you tend to show some feature of you more than the others you have, therefore you dream of the giant. If you see yourself being a giant, then it shows the good opinion you have about yourself. Maybe you feel you are the dominant one between those you are surrounded by.
Read more about dreaming of Giant in other dream meanings interpretations.