• sbc,
• sf,
• sebd,
• sg,
• sbs,
• sab,
• su,
• sibl,
• isby,
• psab,
• sfpb,
• qb,
• eb,
• swb,
• sq,
• sz,
• sy,
• ssbl,
• asy,
• sl

• SBA,
• sbe,
• sbw.

The adjective form of "sb" is "somebody's"

The plural form of "sb" is "sbs"

The singular form of the word "sb" is "somebody" or "someone". "Sb" is an abbreviated form of these singular pronouns, usually used in informal or shorthand writing.