12-letter words containing a, t, f, u
- fujita scale — a scale for expressing the intensity of a tornado, ranging from F0 (light damage) to F5 (incredible damage)
- full frontal — showing the entire front: full-frontal nudity.
- full trailer — a trailer supported entirely by its own wheels.
- full-frontal — showing the entire front: full-frontal nudity.
- fulminations — Plural form of fulmination.
- funambulator — a tightrope-walker; a funambulist
- funambulists — Plural form of funambulist.
- functionable — functional (def 3).
- functionally — of or relating to a function or functions: functional difficulties in the administration.
- fundamentals — serving as, or being an essential part of, a foundation or basis; basic; underlying: fundamental principles; the fundamental structure.
- fused quartz — glass made entirely from quartz: a form of silica glass.
- futilitarian — believing that human hopes are vain, and human strivings unjustified.
- futtock band — a metal band around a lower mast somewhat below the top, for holding the lower ends of a futtock shroud.
- future value — the value that a sum of money invested at compound interest will have after a specified period
- giant fulmar — either of two large white or brownish petrels of the genus Macronectes, of the Antarctic Ocean and adjacent seas.
- gracefullest — Superlative form of graceful.
- gratefulness — warmly or deeply appreciative of kindness or benefits received; thankful: I am grateful to you for your help.
- ground fault — the momentary, usually accidental, grounding of a conducting wire.
- ground staff — The people who are paid to maintain a sports ground are called the ground staff.
- gut of canso — Canso (def 2).
- half-century — a period of 100 years.
- half-turning — split spindle.
- heartfulness — The state or quality of being heartful.
- herpetofauna — the reptiles and amphibians that inhabit a given area
- highfaluting — pompous; bombastic; haughty; pretentious.
- hohenstaufen — a member of the royal family that ruled in Germany from 1138 to 1208 and from 1215 to 1254, and in Sicily from 1194 to 1266.
- housefathers — Plural form of housefather.
- humification — the formation of humus.
- hydrosulfate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- ichthyofauna — the indigenous fish of a region.
- ignis fatuus — Also called friar's lantern, will-o'-the-wisp. a flitting phosphorescent light seen at night, chiefly over marshy ground, and believed to be due to spontaneous combustion of gas from decomposed organic matter.
- in a flutter — agitated, flustered
- inconfutable — (obsolete) Not confutable.
- infatuations — Plural form of infatuation.
- infibulation — the stitching together of the vulva, often after a clitoridectomy, leaving a small opening for the passage of urine and menstrual blood.
- influentials — Plural form of influential.
- infraduction — (medicine) The turning downward of a part, especially of the eye.
- ink fountain — the part of a printing press that stores ink and feeds it to the rollers.
- insufflation — to blow or breathe (something) in.
- interfaculty — an ability, natural or acquired, for a particular kind of action: a faculty for making friends easily.
- iron sulfate — ferrous sulfate.
- juventa fons — an area in the southern hemisphere of Mars, appearing as a dark region when viewed through a telescope.
- laticiferous — bearing or containing latex.
- latifundista — the owner of a latifundio in Latin America or Spain.
- leaf lettuce — a type of lettuce having loosely clustered, often curled leaves that are sometimes tinged with red.
- leaf mustard — a pungent powder or paste prepared from the seed of the mustard plant, used as a food seasoning or condiment, and medicinally in plasters, poultices, etc.
- leaf through — one of the expanded, usually green organs borne by the stem of a plant.
- left luggage — baggage stored temporarily
- life annuity — any annuity that is contingent upon the survival of the annuitant or annuitants, especially an annuity that terminates with the death of a single annuitant.
- liquefacient — something that liquefies or promotes liquefaction.