15-letter words containing f, i, p, r
- spanish trefoil — alfalfa.
- special feature — an article differing from the normal format and focusing on a particular topic
- specific charge — the ratio of the charge on a particle to the mass of the particle.
- spelling reform — an attempt to change the spelling of English words to make it conform more closely to pronunciation.
- spirits of salt — a solution of hydrochloric acid in water
- spirits of wine — alcohol (def 1).
- stiff upper lip — stoicism
- subprofessional — being below professional standards: subprofessional health care.
- sulfite process — a process for making wood pulp by digesting wood chips in an acid liquor consisting of sulfurous acid and a salt, usually calcium bisulfite.
- super-efficient — performing or functioning in the best possible manner with the least waste of time and effort; having and using requisite knowledge, skill, and industry; competent; capable: a reliable, efficient assistant.
- superconfidence — great or extreme confidence, overconfidence
- superefficiency — the quality or condition of being superefficient
- superficialness — being at, on, or near the surface: a superficial wound.
- supporting film — a film that accompanies the main feature film in a film programme
- surface-ripened — (of cheese) ripened on the surface by molds or other microorganisms.
- trading profits — profits made from the buying and selling of goods and services
- traffic pattern — Aeronautics. a system of courses about an airfield that aircraft are assigned to fly when taking off, landing, or preparing to land.
- treaty of paris — a treaty of 1763 signed by Britain, France, and Spain that ended their involvement in the Seven Years' War
- trifluoperazine — a compound, C 21 H 24 F 3 N 3 S, used as an antipsychotic.
- unfair practice — unfair competition.
- upright freezer — a freezer that is tall rather than wide
- weatherproofing — Present participle of weatherproof.
- windfall profit — a profit that arises thanks to an external event over which the person profiting had no control