| Acronym | Sense | Language | Topics |
|---|---|---|---|
| BA | (The) Biblical Archaeologist | In English | → Serial publications, periodicals → Christianity → Archeology |
| BA | Bundesagentur für Arbeit (www.arbeitsagentur.de) | In German | → Central administration → Labour, labour economics → Germany |
| BA | Besoin d'Amélioration | In French | → Quality management |
| BA | Behaviour Aggregate | In English | → Networks, communication → Telecommunications |
| BA | Baccalaureus Artium | In Latin | → Education → Arts |
| BA | Bonne Action | In French | |
| BA | Breathing Apparatus | In English | → Firefighting |
| BA | Basic Access | In English | → Telecommunications → Networks, communication |