• plac,
• plt,
• llc,
• plcs,
• plce,
• pluc,
• pll,
• ggc,
• axc,
• alg,
• clp,
• clx,
• cxc,
• dfc,
• cln,
• flc,
• gac,
• hlm,
• kle,
• pli

The adjective form of PLC is "P.L.C". or "public limited company". In this form, it indicates that a company is incorporated under limited liability and can issue shares to the public.