15-letter words containing s, p, e, l, u
- superfluousness — being more than is sufficient or required; excessive.
- superindividual — greater than the individual
- superinvolution — an act or instance of involving or entangling; involvement.
- superior planet — any of the five planets whose orbits are outside the orbit of the earth, namely, the planets Mars, Jupiter, Saturn, Uranus, and Neptune.
- supernaturalism — supernatural character or agency.
- supernaturalist — supernatural character or agency.
- supernaturality — the quality or state of being supernatural; supernaturalism.
- supernaturalize — to make supernatural; give supernatural character or qualities to.
- superplasticity — the phenomenon, exhibited by certain metals and alloys usually at high temperatures, of stretching to extreme lengths without breaking
- superspecialist — a highly skilled specialist
- supplementation — the act or process of supplementing.
- supporting role — acting: secondary part
- suppressibility — the capacity to be suppressed
- supreme council — the legislature of the former Soviet Union and its successor states, consisting of an upper house (Soviet of the Union or Council of the Union) whose delegates are elected on the basis of population, and a lower house (Soviet of Nationalities or Council of Nationalities) whose delegates are elected to represent the various nationalities.
- surreptitiously — obtained, done, made, etc., by stealth; secret or unauthorized; clandestine: a surreptitious glance.
- suspensefulness — the state of being suspenseful
- suspension file — a folder for documents that has protruding ends that can be hung over rails for storage
- the black stump — an imaginary marker of the extent of civilization (esp in the phrase beyond the black stump)
- the jos plateau — a plateau in Nigeria with an average altitude of 1280 metres
- the last supper — the supper of Jesus and His disciples on the eve of His Crucifixion. Compare Lord's Supper (def 1).
- tricuspid valve — the valve, consisting of three triangular flaps of tissue between the right auricle and ventricle of the heart, that keeps blood from flowing back into the auricle.
- u-shaped valley — a steep-sided valley caused by glacial erosion
- ultramicroscope — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- un-supplemented — something added to complete a thing, supply a deficiency, or reinforce or extend a whole.
- unapprehensible — not able to be understood or comprehended
- uncompromisable — that cannot or should not be compromised
- undisciplinable — unable to be disciplined or controlled
- unpeaceableness — the quality or state of being unpeaceable; quarrelsomeness
- unpolished rice — a partly refined rice, hulled and deprived of its germ but retaining some bran.
- unpretentiously — without pretension
- unprogressively — in an unprogressive manner
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- up one's sleeve — secretly ready
- upper peninsula — a peninsula in the northern US between Lakes Superior and Michigan, constituting the N part of the state of Michigan
- upperclasswoman — An upperclasswoman is a junior or senior student in a high school, college, or university.
- upsetting lever — the horizontal distance between the center of gravity, acting downward, and the center of buoyancy, acting upward, when they are so placed as to form a couple (upsetting couple) tending to capsize the boat.
- venus's-flytrap — a carnivorous plant, Dionaea muscipula, native to bogs of North and South Carolina, having roundish leaves with two lobes that close like a trap when certain delicate hairs on them are irritated, as by a fly: the range is now reduced, though the plants are still locally abundant.
- viper's bugloss — the blueweed.
- wallpaper music — music that is pleasant but not interesting, so people do not pay much attention to it
- white corpuscle — white blood cell.
- winter purslane — a plant, Montia perfoliata, native to western North America, of the purslane family, having edible, egg-shaped leaves and clusters of small, white flowers.
- work oneself up — become overwrought
- yorke peninsula — a peninsula in S Australia between Spencer Gulf and the Gulf of St. Vincent. 160 miles (257 km) long and 20–35 miles (32–56 km) wide.
- zygophyllaceous — belonging to the Zygophyllaceae, the caltrop family of plants.