Proudest

adjective, prouder, proudest.
1.
feeling pleasure or satisfaction over something regarded as highly honorable or creditable to oneself (often followed by of, an infinitive, or a clause).
2.
having, proceeding from, or showing a high opinion of one’s own dignity, importance, or superiority.
3.
having or showing self-respect or self-esteem.
4.
highly gratifying to the feelings or self-esteem:
It was a proud day for him when his son entered college.
5.
highly honorable or creditable:
a proud achievement.
6.
stately, majestic, or magnificent:
proud cities.
7.
of lofty dignity or distinction:
a proud name; proud nobles.
8.
Chiefly South Midland and Southern U.S. pleased; happy:
I’m proud to meet you.
9.
full of vigor and spirit:
a proud young stallion.
10.
Obsolete. brave.
Idioms
11.
do one proud,

to be a source of pride or credit to a person:
His conduct in such a difficult situation did him proud.
to treat someone or oneself generously or lavishly:
You really did us proud with this supper.

adjective
1.
foll by of, an infinitive, or a clause. pleased or satisfied, as with oneself, one’s possessions, achievements, etc, or with another person, his or her achievements, qualities, etc
2.
feeling honoured or gratified by or as if by some distinction
3.
having an inordinately high opinion of oneself; arrogant or haughty
4.
characterized by or proceeding from a sense of pride: a proud moment
5.
having a proper sense of self-respect
6.
stately or distinguished
7.
bold or fearless
8.
(of a surface, edge, etc) projecting or protruding from the surrounding area
9.
(of animals) restive or excited, esp sexually; on heat
adverb
10.
do someone proud

to entertain someone on a grand scale: they did us proud at the hotel
to honour or distinguish a person: his honesty did him proud

In addition to the idiom beginning with proud