Initialism of Before Christ.

British Columbia, a Canadian province. / Baja California, a Mexican state. / Initialism of Boston College.

Initialism of birth control. / (chemistry) Initialism of benzalkonium chloride. / (US, navy) Initialism of battlecruiser. / (computer science) Initialism of backward compatibility.

Initialism of best-case scenario. / (American football, historical) Initialism of Bowl Championship Series. Replaced after the 2013 season by the College Football Playoff.

Alternative letter-case form of BC (Before Christ)

(Internet slang) Alternative form of b/c: because.

(music) basso continuo / (law enforcement) bodycam / Initialism of blind copy, a shortening of blind carbon copy

plural of BC

folic acid