Miscellanea
- Fall (Scots), an obsolete Scottish measurement of length
- Fa (brand), a brand for personal care products
- Factor analysis
- Factory automation
- Faculty assistant
- Family assistance
- Farmers' Almanac
- Fat admirer
- Feasibility analysis
- Fibonacci Association
- Finite automata
- Foreign Affairs
- Functional analysis
- Nikon FA, a 35 mm SLR camera
- Persian language (Farsi Language), in ISO 639-1 code
- Fresh Aire
- Fighters Anthology
- Sweet F.A., a British slang phrase meaning 'nothing at all'
- Fur Affinity, an online gallery for the furry fandom.
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