There are multiple definitions:

1. frequently asked question(English)

   • Practical shorthand

2. Functional Activities Questionnaire(English)

   • AD, ARTFL, CU, CDR, CSF, FTD, GDS, MCI, MMSE, NfL, PCA, PET, PPA, PSP, SEADL, SUVR, TDP, TES, 18F-FTP, ADL, BI, CVD, HDS, MID, MoCA, VCI, IADL
   • Disability, Questionnaire
   • https://doi.org…4422(21)00214-3
   • https://doi.org…55/2021/8787684
   • https://doi.org…3233/JAD-170578