| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| JA | Juna Amiko | In Esperanto | → Artificial languages (linguistics) | 
| JA | Journal Asiatique | In French | → Serial publications, periodicals → Language, linguistics, literature → Geography, biography, history  | 
| JA | Jugoslavenska armija | In Croatian | → Military affairs | 
| JA | Juna Alumeto | In Esperanto | → Newspapers, journalism |