What does "dishonor" mean?

Additional senses

1. 2.(Law) The nonpayment or nonacceptance of commercial paper by the party on whom it is drawn.
2. 3.To deprive of honor; to disgrace; to bring reproach or shame on; to treat with indignity, or as unworthy in the sight of others; to stain the character of; to lessen the reputation of; as, the duelist dishonors himself to maintain his honor. Nothing . . . that may dishonor Our law, or stain my vow of Nazarite. Milton.
3. 4.To violate the chastity of; to debauch. Dryden.
4. 5.To refuse or decline to accept or pay; -- said of a bill, check, note, or draft which is due or presented; as, to dishonor a bill exchange.