To be proud of sb/sth:
Feeling deep pleasure or satisfaction as a result of one’s own achievements, qualities, or possessions or those of someone with whom one is closely associated.
Examples:
1. I am about to do sth, it is very big. Very important, when you hear about it, you are going to be very proud.
2. A proud grandma of three boys she got nine passes and he was so proud of her.
آی-ویدئو