8-letter words containing a, i, r, d, o
- radioman — a person who operates a radio.
- radisson — Pierre Esprit [es-pree] /ɛs pri/ (Show IPA), 1636?–1710? French fur trader and explorer in Canada.
- railroad — a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail.
- raimondi — Marcantonio [mahr-kan-toh-nee-oh;; Italian mahr-kahn-taw-nyaw] /ˌmɑr kænˈtoʊ niˌoʊ;; Italian ˌmɑr kɑnˈtɔ nyɔ/ (Show IPA), c1480–c1534, Italian engraver.
- raindrop — a drop of rain.
- rationed — a fixed allowance of provisions or food, especially for soldiers or sailors or for civilians during a shortage: a daily ration of meat and bread.
- reordain — to ordain again
- rhabdoid — a rod-shaped structure found in the cells of some plants and animals
- rhodanic — of or relating to thiocyanic acid
- rhodesia — (as Southern Rhodesia, ) a former British colony in S Africa: declared independence 1965; name changed to Zimbabwe, 1979.
- rigadoon — a lively dance, formerly popular, for one couple, characterized by a jumping step and usually in quick duple meter.
- rigaudon — rigadoon.
- roadkill — Informal. the body of an animal killed on a road by a motor vehicle.
- roadside — the side or border of the road; wayside.
- rodentia — the order comprising the rodents.
- rondonia — a state in W Brazil. 93,815 sq. mi. (242,980 sq. km). Capital: Pôrto Velho.
- rosalind — a female given name.
- sarcodic — pertaining to the sarcode or protoplasm of an animal
- sardonic — characterized by bitter or scornful derision; mocking; cynical; sneering: a sardonic grin.
- sarodist — a person who plays the sarod
- sideroad — (esp in Ontario) a road, usually north-south, going at right angles to concession roads
- solidare — an old coin
- solidary — characterized by or involving community of responsibilities and interests.
- soredial — pertaining to or resembling a soredium.
- sporadic — (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm.
- stradiot — a soldier, usually of Greek or Albanian origin, who fought on horseback for the Venetian republic in the 15th and 16th centuries
- tailored — (of a woman's garment) in a simple or plain style with fitted lines. Compare dressmaker (def 2).
- takoradi — the chief port of Ghana, in the southwest on the Gulf of Guinea: modern harbour opened in 1928. Pop (with Sekondi): 335 000 (2005 est)
- tandoori — baked or cooked in a tandoor: tandoori chicken.
- tapiroid — of or resembling a tapir
- tarsioid — a fossil of the suborder Tarsioidea
- teratoid — resembling a monster.
- titograd — former name (1945–92) of Podgorica.
- tornadic — a localized, violently destructive windstorm occurring over land, especially in the Middle West, and characterized by a long, funnel-shaped cloud extending toward the ground and made visible by condensation and debris. Compare waterspout (def 3).
- toroidal — of or relating to a toroid.
- traditor — an early Christian who betrayed other Christians at the time of the Roman persecutions.
- trimodal — (of a distribution) having three modes.
- trinodal — having three nodes or joints.
- tripodal — pertaining to or having the form of a tripod.