(US) The early stages of; the beginning process; the start.

Abbreviation of Alberta, a province of Canada. / Initialism of Artium baccalaureus.

Initialism of able seaman; able-bodied seaman. / Initialism of adult baby. / Initialism of afterburner. / Initialism of aid to the blind. / (military, aviation) Initialism of airbase.

Initialism of airborne. / Initialism of antiballistic. / (baseball) Initialism of at bat.

A diminutive of the male given name Abraham, from Hebrew.

(slang, US) A five-dollar bill.

A surname from Japanese.

(immunology) Antibody.

(Judaism) Av.

A diminutive of the male given name Abner, from Hebrew, occasionally used as a formal given name.