4-letter words containing f, s
- sohf — sense of humour failure
- soif — Summary Object Interchange Format
- spif — a postage stamp perforated with the initials of a firm to avoid theft by employees
- stfu — (chat) Shut the fuck up.
- stfw — Search The Fucking Web
- suf- — sub-
- suf. — suffix
- sufi — a member of an ascetic, mystical Muslim sect.
- suif — Stanford University Intermediate Format. A register-oriented intermediate language.
- surf — the swell of the sea that breaks upon a shore or upon shoals.
- svcf — Silicon Valley Coach Federation
- swff — saltwater fly-fishing
- usaf — the permanent or regular military air force of the United States, established in 1947 as a separate service under the authority of the Department of Defense: a branch of the U.S. Army before 1947. Abbreviation: USAF.
- vsfa — Victor Submission Fighting Academy
- wafs — a member of the Women in the Air Force, an auxiliary of the U.S. Air Force.
- wbsf — World Benchrest Shooting Federation
- wefs — Weekly Electronic Football Simulation
- wfsc — Washington Figure Skating Club
- wsff — World Stick Fencing Federation
- wsfl — Western States Football League
- wsfn — Which Stands For Nothing
- wsfr — Washington Statewide Fishing Reports
- wskf — World Shorin-ryu Karate Federation
- wxsf — Wrestlemania Xtreme Simulation Federation