AL noun7 •Abbreviation of Alabama: a state of the United States. •Initialism of annual leave. •Initialism of assisted living.Owners and operators of long-term care facilities may perceive AL as small scale nursing homes with fewer operational and staffing problems and therefore a higher return on their investment. — 2001 •Initialism of artificial life. •Initialism of assembly language. •Initialism of auxiliary language. •Abbreviation of Alagoas: a state of Brazil. formsALs