There are multiple definitions:

1. amplitude adjusted Fourier transform(English)

   • iAAFT, FT
   • Signal analysis

2. Assertive Adolescent and Family Treatment(English)

   • A-CRA, CFIR, CSAT, EBT, EPIS, GAIN, SAMHSA, SO, SUD
   • Addiction and health
   • https://doi.org…sat.2020.107999