Initialism of Professional Bowlers Association. / Initialism of Philippine Basketball Association. / Initialism of Patrolmen's Benevolent Association. / Initialism of Prevent Blindness America.

Abbreviation of partial-birth abortion. / Initialism of pattern of business activity. / pattern of business activities / patterns of business activity / patterns of business activities

plural of PBA

plural of pbar

(video games, board games) Initialism of point blank area of effect (when the affected region is centred on the same character who is casting the spell etc.)

Acronym of polybutadiene acrylonitrile.

Abbreviation of picobar. / (physics) antiproton (pronunciation spelling of the symbol p̄)