8-letter words containing o, u
- fiddious — to treat (someone) as Coriolanus, in the eponymous play, treated Aufidius
- filioque — (theology) The use of the Latin word filioque (and the son) in the Western form of the Nicene Creed, to indicate that the Holy Spirit proceeds from both the Father and the Son (as opposed to the Eastern churches which believe the Spirit proceeds from the Father alone).
- fill out — to make full; put as much as can be held into: to fill a jar with water.
- find out — to come upon by chance; meet with: He found a nickel in the street.
- fink out — a strikebreaker.
- fish out — any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
- flag out — to register (a commercial vehicle) in a country other than the one in which it operates, usually in order to take advantage of favourable rates of taxation
- flameout — burning gas or vapor, as from wood or coal, that is undergoing combustion; a portion of ignited gas or vapor.
- flat out — horizontally level: a flat roof.
- flat-out — moving or working at top speed or with maximum effort; all-out: a flat-out effort by all contestants.
- flatuous — flatulent
- flavours — Plural form of flavour.
- flavoury — Possessing flavour.
- flexuous — full of bends or curves; sinuous.
- flip out — to toss or put in motion with a sudden impulse, as with a snap of a finger and thumb, especially so as to cause to turn over in the air: to flip a coin.
- flip-out — to toss or put in motion with a sudden impulse, as with a snap of a finger and thumb, especially so as to cause to turn over in the air: to flip a coin.
- floccule — something resembling a small flock or tuft of wool.
- floscule — a floret; a single blossom of a composite flower
- flounced — Simple past tense and past participle of flounce.
- flounces — Third-person singular simple present indicative form of flounce.
- flounder — to struggle with stumbling or plunging movements (usually followed by about, along, on, through, etc.): He saw the child floundering about in the water.
- flouring — Present participle of flour.
- flourish — to be in a vigorous state; thrive: a period in which art flourished.
- flouting — Openly disregard (a rule, law or convention).
- flu shot — vaccination against influenza
- fluework — the flue stops of an organ collectively
- flunkout — a person who has flunked out of school or a course.
- fluorene — a white, crystalline, water-insoluble solid, C 13 H 10 , used chiefly in the manufacture of resins and dyes.
- fluorian — (geology) containing fluorine.
- fluoride — a salt of hydrofluoric acid consisting of two elements, one of which is fluorine, as sodium fluoride, NaF.
- fluorine — the most reactive nonmetallic element, a pale-yellow, corrosive, toxic gas that occurs combined, especially in fluorite, cryolite, phosphate rock, and other minerals. Symbol: F; atomic weight: 18.9984; atomic number: 9.
- fluorite — a common mineral, calcium fluoride, CaF 2 , occurring in green, blue, purple, yellow, or colorless crystals, usually in cubes: the principal source of fluorine, used also as a flux in metallurgy and for ornament.
- fluoroid — (crystallography) A tetrahexahedron.
- fluxions — (obsolete, mathematics) differential calculus.
- focusing — a central point, as of attraction, attention, or activity: The need to prevent a nuclear war became the focus of all diplomatic efforts.
- focussed — a central point, as of attraction, attention, or activity: The need to prevent a nuclear war became the focus of all diplomatic efforts.
- focusses — a central point, as of attraction, attention, or activity: The need to prevent a nuclear war became the focus of all diplomatic efforts.
- foetuses — Plural form of foetus.
- fogbound — unable to sail or navigate because of heavy fog.
- fogfruit — a wildflower of the Verbena family
- fold out — a page larger than the trim size of a magazine or book, folded one or more times so as not to extend beyond the pages; gatefold.
- fold-out — a page larger than the trim size of a magazine or book, folded one or more times so as not to extend beyond the pages; gatefold.
- foldouts — Plural form of foldout.
- followup — the act of following.
- footmuff — a muff used to keep the feet warm
- footpump — a pump that is operated by foot
- footrule — rigid measure, one foot in length
- for sure — free from doubt as to the reliability, character, action, etc., of something: to be sure of one's data.
- forceful — full of force; powerful; vigorous; effective: a forceful plea for peace.
- foreguts — Plural form of foregut.