13-letter words containing f, r, g, s
- shark finning — the practice of catching sharks, removing their fins (which are commercially valuable) and throwing the rest of the shark back into the sea (often while it is still alive, but doomed to drown because it cannot swim without its fins)
- sheep farming — agriculture: sheep raising
- siege warfare — the use of offensive operations carried out to capture a fortified place by surrounding it, severing its communications and supply lines, and deploying weapons against it
- sigmund freud — Anna, 1895–1982, British psychoanalyst, born in Austria (daughter of Sigmund Freud).
- significatory — serving to signify
- single father — a father who brings up a child or children alone, without a partner.
- single-figure — relating to numbers below ten
- skin grafting — the transplanting of healthy skin from the patient's or another's body to a wound or burn, to form new skin.
- soundproofing — materials used to make something soundproof
- sponge finger — sweet finger-shaped biscuit
- spurge family — the large plant family Euphorbiaceae, characterized by herbaceous plants, shrubs, and trees having milky juice, simple alternate leaves or no leaves, usually petalless flowers often with showy bracts, and capsular fruit, and including cassava, croton, crown-of-thorns, poinsettia, snow-on-the-mountain, spurge, and the plants that produce castor oil, rubber, and tung oil.
- staghorn fern — any of several epiphytic Old World ferns of the genus Platycerium, having broad, often antlerlike leaves and cultivated as a houseplant.
- straight face — a serious or impassive facial expression that conceals one's true feelings about something, especially a desire to laugh.
- straightforth — straight or directly forward
- strategic fit — (in business) the degree to which the activities of different sections of a business or businesses working together complement one another to achieve competitive advantage and business success
- strong safety — the defensive back assigned to cover the area across from the strong side of the opponent's offensive line and primarily responsible for defending against pass plays.
- sugar factory — a factory which refines sugar from organic sources into a form that can be used in cooking etc
- sugar of lead — lead acetate.
- sugar of milk — lactose.
- sulfur spring — a spring the water of which contains naturally occurring sulfur compounds.
- surfing music — rock-'n'-roll music from California in the early 1960s, characterized by close treble harmonies and with lyrics emphasizing the exhilaration of surfing and beach life.
- toasting fork — a long-handled fork used for cooking or toasting frankfurters, marshmallows, bread, etc., usually over an open fire.
- trade figures — a record of how much a country has paid for goods which it has bought from other countries, compared with how much it has been paid for goods which it has sold to other countries
- trash farming — cultivation by leaving stubble, etc, on the surface of the soil to serve as a mulch
- trout fishing — angling to catch trout
- understaffing — the condition of being understaffed or of lacking a number of employees
- virgin forest — a forest in its natural state, before it has been explored or exploited by man
- weightlifters — Plural form of weightlifter.
- working stiff — A working stiff is a person who has an ordinary job that is not well-paid.
- yorkshire fog — a common tufted grass, Holcus lanatus, having downy leaves and flower heads that are white or pink and branched, with spikelets carrying the flowers