English abbreviations from fit to fits
- FIT (fairing intervention tool)
- FITA (Federation of International Trade Associations)
- FITC (Fluorescein IsoThioCyanate)
- FITD (Fight In The Dog)
- FITF (Focused Interaction Testing Framework)
- FITG (Fill In The Gap)
- FITH (Fire In The Head)
- FITK (Filter Inductor Torodial Kit)
- FITL (Faculty Institute on Teaching and Learning)
- FITM (Fire Inside The Man)
- FITN (Fire In The Night)
- FITOW (Further Improved TOW (US))
- FITP (Fiesta In The Park)
- FITREP (Fitness Report)
- FITS (Flexible Image Transport System)