4-letter words containing r, u
- dura — dura mater.
- dure — hard; severe.
- durn — darn2 .
- duro — a peso of Spain or Spanish America.
- durt — Alternative form of dirt.
- ecru — very light brown in color, as raw silk, unbleached linen, etc.
- erhu — A Chinese two-stringed musical instrument held in the lap and played with a bow.
- eruv — An urban area enclosed by a wire boundary that symbolically extends the private domain of Jewish households into public areas, permitting activities within it that are normally forbidden in public on the Sabbath.
- euer — Obsolete typography of ever.
- eure — a department of N France, in Haute-Normandie region. Capital: Évreux. Pop: 550 056 (2003 est). Area: 6037 sq km (2354 sq miles)
- euro — The single European currency, which replaced the national currencies of France, Germany, Spain, Italy, Greece, Portugal, Luxembourg, Austria, Finland, the Republic of Ireland, Belgium, and the Netherlands in 2002. Seventeen member states of the European Union now use the euro.
- four — a cardinal number, three plus one.
- frau — a married woman; a wife.
- frug — a dance deriving from the twist.
- frum — Yiddish. religious; observant.
- furl — to gather into a compact roll and bind securely, as a sail against a spar or a flag against its staff.
- furo — a short, deep Japanese bathtub, often with a seat, in which a person sits upright while soaking in hot water.
- furr — a furrow
- furs — Plural form of fur.
- fury — unrestrained or violent anger, rage, passion, or the like: The gods unleashed their fury on the offending mortal.
- gaur — a massive wild ox, Bibos gaurus, of southeastern Asia and the Malay Archipelago, growing to a height of 6 feet (1.8 meters) at the shoulder: now reduced in numbers.
- geru — An earthy-red color. In India this colour is used to paint flowerpots and tree bases.
- gour — Dated form of gaur.
- grub — the thick-bodied, sluggish larva of several insects, as of a scarab beetle.
- grue — to shudder.
- gruf — (obsolete) forwards; with one's face to the ground.
- grum — grim; glum; surly.
- grup — (especially in marketing) an adult, usually over the age of 30, whose lifestyle, interests, and tastes are in some ways the same as those of much younger people: skateboards that appeal to grups and teenagers.
- grus — a constellation in the S hemisphere lying near Phoenix and Piscis Austrinus and containing a first and a second magnitude star
- guar — a plant, Cyamopsis tetragonolobus, of the legume family, grown as a forage crop and for its seeds, which produce a gum (guar gum) used as a thickening agent and stabilizer in foods and pharmaceuticals and as sizing for paper and cloth.
- gurl — Obsolete form of girl.
- gurn — Make a grotesque face.
- gurt — (mining) A gutter or channel for water, hewn out of the bottom of a working drift.
- guru — ("Guru") 1469–1539, Indian religious leader: founder of Sikhism.
- hour — a period of time equal to one twenty-fourth of a mean solar or civil day and equivalent to 60 minutes: He slept for an hour.
- huer — One who cries out or gives an alarm.
- hurd — (operating system) The GNU project's replacement for the Unix kernel. The Hurd is a collection of servers that run on the Mach microkernel to implement file systems, network protocols, file access control, and other features that are implemented by the Unix kernel or similar kernels such as Linux. The GNU C Library provides the Unix system call interface, and calls the Hurd for services it can't provide itself. The Hurd aims to establish a framework for shared development and maintenance, allowing a broad range of users to share projects without knowing much about the internal workings of the system - projects that might never have been attempted without freely available source, a well-designed interface, and a multi-server-based design. Currently there are free ports of the Mach kernel to the Intel 80386 IBM PC, the DEC PMAX workstation, the Luna 88k, with more in progress, including the Amiga and DEC Alpha-3000 machines. According to Thomas Bushnell, BSG, the primary architect of the Hurd: 'Hurd' stands for 'Hird of Unix-Replacing Daemons' and 'Hird' stands for 'Hurd of Interfaces Representing Depth'. Possibly the first software to be named by a pair of mutually recursive acronyms.
- hurl — to throw or fling with great force or vigor.
- hurr — (intransitive) to hum; buzz.
- hurt — to cause bodily injury to; injure: He was badly hurt in the accident.
- iaru — International Amateur Radio Union
- irus — Irvine Research Unit in Software
- iure — by law
- jour — day
- junr — junior
- jura — juice; gravy.
- jurd — Doctor of Law
- jure — jurisprudence
- jury — a group of persons sworn to render a verdict or true answer on a question or questions officially submitted to them.
- kaur — a title assumed by a Sikh woman when she becomes a full member of the community