A-20 What is the full meaning of A-20? What does A-20 stand for? A-20 stands for Douglas DB-7 Havoc, USAAF Twin-Engine Attack Bomber (WWII) Similar Acronyms and Abbreviations ACWAA AHD AAPM TG40 ACRFA DNCD CAMAD DOTHSA YCINT ADCSC A200N