15-letter words containing s, t, e, m, r, p
- spring mattress — a mattress containing an arrangement of spiral springs
- strephosymbolia — a condition of perceiving objects as their mirror image and, specifically, having difficulty in distinguishing letters in words
- super-committee — a committee with members from two or more organizations or political groups
- supergovernment — a centralized organization formed by a group of governments to enforce justice or maintain peace.
- superimposition — to impose, place, or set over, above, or on something else.
- supernaturalism — supernatural character or agency.
- superparasitism — the parasitic deposit of eggs on a host already parasitized by a different member of the same species
- superpatriotism — the quality of being superpatriotic
- symmetric group — the group of all permutations of a finite set.
- sympathy strike — a strike by a body of workers, not because of grievances against their own employer, but by way of endorsing and aiding another group of workers who are on strike or have been locked out.
- symphony writer — a composer of an extended large-scale orchestral composition, usually with several movements, at least one of which is in sonata form
- system operator — a person who maintains a computer system or network, especially one who operates a computer bulletin board.
- tetrasporangium — a sporangium containing four asexual spores.
- the paralympics — a sporting event, modelled on the Olympic Games, held solely for disabled competitors
- theriomorphosis — transformation into an animal form, often associated with mythological characters
- thermoperiodism — the effect on an organism of rhythmic fluctuations in temperature.
- to take up arms — If one group or country takes up arms against another, they prepare to attack and fight them.
- ultramicroscope — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- un-presumptuous — full of, characterized by, or showing presumption or readiness to presume in conduct or thought, as by saying or doing something without right or permission.
- undercompensate — to compensate or pay less than is fair, customary, or expected.
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- visible imports — products that a company or country buys from other countries
- white supremacy — the belief, theory, or doctrine that white people are inherently superior to people from all other racial groups, especially black people, and are therefore rightfully the dominant group in any society.