What does affront mean?

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From our dictionary:

af•front

Pronunciation: (u-frunt'), [key]
n.
1. a personally offensive act or word; deliberate act or display of disrespect; intentional slight; insult: an affront to the king.
2. an offense to one's dignity or self-respect.

v.t.
1. to offend by an open manifestation of disrespect or insolence: His speech affronted all of us.
2. to make ashamed or confused; embarrass.
3. Archaic.to front; face; look on.
4. Obs.to meet or encounter face to face; confront.