- SSO
- Single Sign On (Computing » Security)* Sanitary Sewer Overflow (Community)* System Security Officer (Governmental » US Government)* System Security Officer (Governmental » Transportation)* System Security Officer (Business » Positions)* System Security Officer (Governmental » NASA)* System Security Officer (Governmental » Military)* System Security Officer (Business » General)* Südsüdost (International » German)* Student Services Office (Academic & Science » Universities)* School Services Officer (Business » Positions)* Special Security Office (Governmental » Military)* Springfield Symphony Orchestra (Community » Music)* Secondary Significant Other (Internet » Chat)* School Service Officer (Business » Positions)* System Staff Officer (Governmental » Military)* Signal Security Office (Governmental » Military)* Senior Support Officer (Business » Positions)* Struck Submerged Object (Academic & Science » Ocean Science)* Source Selecting Official (Academic & Science » Ocean Science)* Student State Officer (Academic & Science » Universities)* Sortof Significant Other (Internet » Chat)* Skate Society Of Oregon (Community » Sports)* Sao Lourenco, Minas Gerais, Brazil (Regional » Airport Codes)
Abbreviations dictionary. 2012.