15-letter words containing s, o, m, a
- tirso de molina — Luis [loo-ees] /luˈis/ (Show IPA), 1535–1600, Spanish Jesuit theologian.
- to err is human — If you say that to err is human, you mean that it is natural for human beings to make mistakes.
- to make friends — If you make friends with someone, you begin a friendship with them. You can also say that two people make friends.
- to take up arms — If one group or country takes up arms against another, they prepare to attack and fight them.
- topgallant mast — a mast fixed to the head of a topmast on a square-rigged vessel.
- total serialism — (in some music after 1945) the use of serial techniques applied to such elements as rhythm, dynamics, and tone colour, as found in the early works of Stockhausen, Boulez, etc
- totalitarianism — the practices and principles of a totalitarian regime.
- transform fault — a strike-slip fault that offsets a mid-ocean ridge in opposing directions on either side of an axis of seafloor spreading.
- transition team — a group of people who manage the transition between one system, administrative regime, etc and another
- transmissometer — an instrument for measuring visibility or the transmission of light in the atmosphere.
- trout fisherman — a fisherman who catches trout
- trypanosomiasis — any infection caused by a trypanosome.
- tutorial system — a system of education, especially in some colleges, in which instruction is given personally by tutors, who also act as general advisers of a small group of students in their charge.
- twist one's arm — to combine, as two or more strands or threads, by winding together; intertwine.
- two-dimensional — having the dimensions of height and width only: a two-dimensional surface.
- uinta mountains — a mountain range in NE Utah: part of the Rocky Mountains. Highest peak: Kings Peak, 4123 m (13 528 ft)
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultramicroscope — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- ultramicroscopy — the use of the ultramicroscope.
- uncompassionate — having or showing compassion: a compassionate person; a compassionate letter.
- uncomplaisantly — in an uncomplaisant manner
- uncompromisable — that cannot or should not be compromised
- undemonstrative — not given to open exhibition or expression of emotion, especially of affection.
- undercompensate — to compensate or pay less than is fair, customary, or expected.
- underestimation — to estimate at too low a value, rate, or the like.
- universal motor — a series-wound motor, of one-half horsepower or less, using alternating or direct current.
- unsanctimonious — Obsolete. holy; sacred.
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- upperclasswoman — An upperclasswoman is a junior or senior student in a high school, college, or university.
- usman dan fodio — 1754–1817, African mystic and revolutionary leader, who created a Muslim state in Nigeria
- ust-kamenogorsk — a city in E Kazakhstan, on the Irtysh River.
- vermouth cassis — a mixed drink made with dry vermouth, crème de cassis, soda or mineral water, and cracked ice.
- vernier compass — a compass on a transit (vernier transit) having a vernier for adjusting magnetic bearings to read as true bearings.
- villeda morales — Ramón [rah-mawn] /rɑˈmɔn/ (Show IPA), 1909?–71, Honduran diplomat and statesman: president 1957–63.
- waddesdon manor — a mansion near Aylesbury in Buckinghamshire: built (1880–89) in the French style for the Rothschild family: noted for its furnishings and collections of porcelain and paintings
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- wee small hours — the hours just after midnight
- well-accustomed — customary; usual; habitual: in their accustomed manner.
- white mountains — a mountain range in the US, chiefly in N New Hampshire: part of the Appalachians. Highest peak: Mount Washington, 1917 m (6288 ft)
- x-ray astronomy — the branch of astronomy that studies celestial objects by means of the x-rays emitted by them.
- yosemite valley — a glacial valley in Yosemite National Park in central California, in the Sierra Nevada Mountains. It has an altitude of about 1200 m (4000 ft), with sheer walls rising about another 1200 m (4000 ft).
- zermelo's axiom — axiom of choice.