12-letter words containing e, u, n, i
- running shoe — trainer, sneaker
- running text — the body of text in a newspaper, magazine, or the like, as distinguished from the heads, illustrations, etc.
- running time — Movies. the length or duration, usually expressed in minutes, of a feature film: The running time of the average film is 90–100 minutes.
- russian blue — any of a breed of domestic cat, thought to have originated in Arkhangelsk, with a soft, dense, grayish-blue or silvery-blue coat and green eyes
- russian zone — a zone in Germany controlled by the Soviet Union 1945–89.
- rutlandshire — a former county, now part of Leicestershire, in central England.
- safe surfing — the practice of using security measures to protect one's computer while surfing the internet
- saint hubert — a borough in S Quebec, Canada, just E of Montreal.
- saint-brieuc — a department in NW France. 2787 sq. mi. (7220 sq. km). Capital: Saint-Brieuc.
- saint-hubert — town in S Quebec, Canada: part of metropolitan Montreal: pop. 77,000
- sainte-beuve — Charles Augustin [sharl oh-gy-stan] /ʃarl oʊ güˈstɛ̃/ (Show IPA), 1804–69, French literary critic.
- sanguiferous — conveying blood, as a blood vessel.
- sanguinolent — of or relating to blood.
- sapindaceous — belonging to the Sapindaceae, the soapberry family of plants.
- saunteringly — in a sauntering manner
- schizogenous — schizogenetic.
- scitamineous — of or relating to the Scitimanae order of plants, which includes the ginger and banana plants
- scutellation — a scutellate state or formation; a scaly covering, as on a bird's foot.
- seclusionist — a person who prefers to be alone or secluded
- security van — an armoured van used to transport money or other valuables
- seleniferous — containing or yielding selenium.
- self-induced — induced by oneself or itself.
- self-insurer — one insured under self-insurance.
- self-tuition — the charge or fee for instruction, as at a private school or a college or university: The college will raise its tuition again next year.
- semiannually — occurring, done, or published every half year or twice a year; semiyearly.
- semiautonomy — the quality or state of being semiautonomous.
- seminiferous — Anatomy. conveying or containing semen.
- seminivorous — feeding on seeds: seminivorous birds.
- sendai virus — a paramyxovirus that tends to cause cell fusion: in inactive form, used in biological research to produce cells with multiple nuclei of different genetic constitutions.
- sensualistic — of or pertaining to the philosophical position of sensualism
- sensualities — sensual nature: the sensuality of Keats's poetry.
- sequentially — characterized by regular sequence of parts.
- series-wound — noting a commutator motor in which the field circuit and armature circuit are connected in series.
- serpentarium — a place where snakes are housed, especially for exhibition.
- serpentinous — of the nature of serpentine; containing or consisting of serpentine
- set function — a function having a collection of sets as domain.
- setting rule — a metal strip used in the hand-setting of type in a composing stick to separate the line being set from the previous one
- shut-in well — confined to one's home, a hospital, etc., as from illness.
- sight unseen — the power or faculty of seeing; perception of objects by use of the eyes; vision.
- silhouetting — a two-dimensional representation of the outline of an object, as a cutout or configurational drawing, uniformly filled in with black, especially a black-paper, miniature cutout of the outlines of a person's face in profile.
- silver mound — a perennial Japanese herb, Artemisia schmidtiana, having silver-green leaves forming a moundlike shape.
- simultaneity — existing, occurring, or operating at the same time; concurrent: simultaneous movements; simultaneous translation.
- simultaneous — existing, occurring, or operating at the same time; concurrent: simultaneous movements; simultaneous translation.
- sine qua non — an indispensable condition; requisite.
- single-issue — pertaining or devoted to one public issue only, especially a political one: single-issue voters.
- six counties — the historic counties of Northern Ireland, which no longer have a local government function
- sliding rule — (formerly) a slide rule.
- slubberingly — in a slubbering or slovenly manner
- slumberingly — in a slumbering manner
- solution set — the roots or values satisfying a given equation or inequality, or a set of simultaneous equations or inequalities