12-letter words containing s, i, n, o, r
- boardsailing — windsurfing
- bognor regis — a resort in S England, in West Sussex on the English Channel: electronics industries. Regis was added to the name after King George V's convalescence there in 1929. Pop: 62 141 (2001)
- bookcrossing — the practice of deliberately leaving books in places where they will be found and read by other people
- bosom friend — an intimate friend
- brainstormer — a person who brainstorms
- brisbane box — a broad-leaved evergreen tree, Tristania conferta, native to Australia, having a deciduous outer bark.
- broadcasting — Broadcasting is the making and sending out of television and radio programmes.
- brown-nosing — If you accuse someone of brown-nosing, you are saying in a rather offensive way that they are agreeing with someone important in order to get their support.
- browser skin — a changeable decorative background for a browser
- buenos aires — the capital of Argentina, a major port and industrial city on the Río de la Plata estuary: became capital in 1880; university (1821). Pop: 13 349 000 (2005 est)
- bunco artist — a confidence trickster or con artist
- burkina faso — an inland republic in W Africa: dominated by Mossi kingdoms (10th–19th centuries); French protectorate established in 1896; became an independent republic in 1960; consists mainly of a flat savanna plateau. Official language: French; Mossi and other African languages also widely spoken. Religion: mostly animist, with a large Muslim minority. Currency: franc. Capital: Ouagadougou. Pop: 17 812 961 (2013 est). Area: 273 200 sq km (105 900 sq miles)
- byelorussian — Byelorussian means belonging or relating to Byelorussia or to its people or culture.
- calibrations — Plural form of calibration.
- calumniators — Plural form of calumniator.
- canine corps — a military or law enforcement body which uses dogs for the detection of explosives or drugs or for security, tracking, etc
- caparisoning — Present participle of caparison.
- carbocations — Plural form of carbocation.
- carbonatites — Plural form of carbonatite.
- carnivourous — Misspelling of carnivorous.
- carryings-on — wild, extravagant, or immoral behavior
- cartoonishly — in a cartoonish manner
- categorising — to arrange in categories or classes; classify.
- cater-cousin — a close friend
- ceiling rose — decorative plaster centrepiece
- celebrations — Plural form of celebration.
- censoriously — In a censorious manner.
- centimorgans — Plural form of centimorgan.
- ceratopsians — Plural form of ceratopsian.
- cerebrations — Plural form of cerebration.
- chain smoker — person: smokes heavily
- chain-smoker — A chain-smoker is a person who chain-smokes.
- chairpersons — Plural form of chairperson.
- chicharrones — A Hispanic dish; made of fried pork rinds.
- chinese tour — a tour in which visitors are shown only what those in charge want them to see.
- chirognomist — someone who studies chirognomy
- chiropterans — Plural form of chiropteran.
- chlorospinel — a variety of spinel used as a gem, colored grass-green by the presence of copper.
- choir-screen — a partition or a screen in a church that acts as a divide between the choir and the aisles
- cholericness — The state or quality of being choleric.
- chondriosome — mitochondrion
- chondrostian — relating to the class Chondrostei of fish with fin rays
- christophany — an appearance or emergence of Christ following his crucifixion
- christophene — chayote.
- chronologies — Plural form of chronology.
- chronologise — Alternative spelling of chronologize.
- chronologist — a person versed in chronology.
- chylomicrons — Plural form of chylomicron.
- chymotrypsin — a powerful proteolytic enzyme secreted from the pancreas in the form of chymotrypsinogen, being converted to the active form by trypsin
- cinque ports — an association of ports on the SE coast of England, originally consisting of Hastings, Romney, Hythe, Dover, and Sandwich, which from late Anglo-Saxon times provided ships for the king's service in return for the profits of justice in their courts. The Cinque Ports declined with the growth of other ports and surrendered their charters in 1685