13-letter words containing a, d, u, r
- rio da duvida — former name of Roosevelt, Río.
- ritual murder — a human sacrifice made to appease a deity.
- road surveyor — a person who does surveying work for road building
- roger-ducasse — Jean Jules Amable [zhahn zhyl a-ma-bluh] /ʒɑ̃ ʒül aˈma blə/ (Show IPA), 1873–1954, French composer.
- rogue dialler — a dial-up connection placed on a computer without the user's knowledge which, when the user tries to connect to the internet, automatically connects to a premium-rate phone number
- rough diamond — gemstone: uncut diamond
- round kumquat — an evergreen, citrus shrub or small tree, Fortunella japonica, of Japan, having blunt, broad leaves and globe-shaped, edible fruit.
- ruanda-urundi — a former territory in central Africa, E of the Democratic Republic of the Congo: formerly part of German East Africa; administered by Belgium as a League of Nations mandate 1923–46 and as a United Nations trust territory 1946–62; now divided into the independent states of Rwanda and Burundi.
- rubberbanding — (in online video games) the backward popping of characters in motion to their recently occupied spaces that results from high latency in the network connection.
- rudimentarily — pertaining to rudiments or first principles; elementary: a rudimentary knowledge of geometry.
- ruggedization — the act or process of making something rugged
- ruled surface — a surface that can be generated by a straight line, as a cylinder or cone.
- run batted in — a runner advanced to home for a score by a particular player at bat, as when he or she gets a hit or a walk with the bases loaded: a category important in individual offensive statistics. Abbreviation: R.B.I.
- run sb ragged — If someone runs you ragged, they make you do so much that you become exhausted.
- running board — a small ledge, step, or footboard, formerly beneath the doors of an automobile, to assist passengers entering or leaving the car.
- rupert's land — (formerly, in Canada) the territories granted by Charles II to the Hudson's Bay Company in 1670 and ceded to the Canadian Government in 1870, comprising all the land watered by rivers flowing into Hudson Bay
- russian salad — a salad of cold diced cooked vegetables mixed with Russian dressing
- saturated fat — a type of single-bond animal or vegetable fat, as that found in butter, meat, egg yolks, and coconut or palm oil, that in humans tends to increase cholesterol levels in the blood. Compare saturated (def 3).
- sawdust trail — the road to conversion or rehabilitation, as for a sinner or criminal.
- schadenfreude — satisfaction or pleasure felt at someone else's misfortune.
- scullery maid — a maid whose duties include washing up and vegetable preparation
- second nature — an acquired habit or tendency in one's character that is so deeply ingrained as to appear automatic: Neatness is second nature to him.
- serum disease — a generalized allergic reaction to a foreign serum or drug, characterized by fever, skin rash, enlarged lymph nodes, and painful joints.
- sharp-tongued — characterized by or given to harshness, bitterness, or sarcasm in speech.
- shear modulus — The shear modulus of a material is how stiff or rigid it is. It is equal to the shear stress divided by the shear strain.
- shoulder arms — to bring the rifle vertically close to the right side with the muzzle uppermost and held at the trigger guard
- shrove sunday — the Sunday before Ash Wednesday; Quinquagesima.
- shunting yard — a place where railway coaches are manoeuvred
- sidereal hour — a 24th part of a sidereal day
- sodium borate — borax1 .
- somar dumpacl — (tool) A utilty which provides a concise report of Windows NT file system permissions, to help find holes in system security.
- sound barrier — Also called sonic barrier, transonic barrier. (not in technical use) a hypothetical barrier to flight beyond the speed of sound, so postulated because aircraft undergo an abruptly increasing drag force induced by compression of the surrounding air when traveling near the speed of sound.
- sound blaster — (hardware) The best known family of sound cards for the IBM PC from Creative Labs.
- sound library — a collection of sounds stored on file (for example on CDs, DVDs, or as digital audio files)
- sound ranging — a method for determining the distance between a point and the position of a sound source by measuring the time lapse between the origin of the sound and its arrival at the point.
- southeastward — Also, southeastwards. toward the southeast.
- southern toad — a common toad, Bufo terrestris, of the southeastern U.S., having prominent knoblike crests on its head.
- southwestward — Also, southwestwards. toward the southwest.
- squanderingly — in a squandering manner
- squandermania — an extreme urge for, or level of pleasure obtained by, spending money recklessly
- square-rigged — having square sails as the principal sails.
- squared paper — graph paper with a pattern of squares formed by lines crossing at right angles.
- squash ladder — a list showing the relative order of merit of a set of squash players determined by the winning player in each match taking the higher of the two players' positions
- stout-hearted — brave and resolute; dauntless.
- student grant — a grant of money awarded to somebody to fund their studying at a university or college
- stuffed derma — kishke.
- subdepartment — a distinct part of anything arranged in divisions; a division of a complex whole or organized system.
- subderivative — a word derived from a derivative.
- subordination — the act of placing in a lower rank or position: The refusal to allow women to be educated was part of society's subordination of women to men.
- subordinative — placed in or belonging to a lower order or rank.