SO(redirected from and so on)
Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Idioms.
Music (in tonic sol-fa) the name used for the fifth note or dominant of any scale
Significant Other, almost invariably written abbreviated and pronounced /S-O/ by hackers. Used to refer to one's primary relationship, especially a live-in to whom one is not married.
The country code for Somalia.