4-letter words containing o, r
- core — The core of a fruit is the central part of it. It contains seeds or pips.
- corf — a wagon or basket used formerly in mines
- cori — Carl Ferdinand. 1896–1984, US biochemist, born in Bohemia; shared a Nobel prize for physiology or medicine (1947) with his wife Gerty Theresa Radnitz Cori (1896–1957) and Bernardo Houssay, for elucidating the stages of glycolysis
- cork — Cork is a soft, light substance which forms the bark of a type of Mediterranean tree.
- corm — an organ of vegetative reproduction in plants such as the crocus, consisting of a globular stem base swollen with food and surrounded by papery scale leaves
- corn — Corn is used to refer to crops such as wheat and barley. It can also be used to refer to the seeds from these plants.
- coro — a city in NW Venezuela.
- corr — corrected
- cory — any of various freshwater catfish belonging to the South American Corydoras genus
- creo — (slang) short for creationist.
- croc — crocodile
- crog — to ride on a bicycle as a passenger
- cron — (operating system) The Unix clock daemon that executes commands at specified dates and times according to instructions in a "crontab" file.
- crop — Crops are plants such as wheat and potatoes that are grown in large quantities for food.
- crow — A crow is a large black bird which makes a loud, harsh noise.
- cryo — (informal) cryoprecipitate.
- dero — a tramp or derelict
- dior — Christian [kris-chuh n;; French krees-tyahn] /ˈkrɪs tʃən;; French krisˈtyɑ̃/ (Show IPA), 1905–57, French fashion designer.
- doer — a person or thing that does something, especially a person who gets things done with vigor and efficiency.
- door — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- dora — a female given name: from a Greek word meaning “gift.”.
- dore — (Paul) Gustave [pawl gy-stav] /pɔl güˈstav/ (Show IPA), 1832?–83, French painter, illustrator, and sculptor.
- dork — Slang. a silly, out-of-touch person who tends to look odd or behave ridiculously around others; a social misfit: If you make me wear that, I’ll look like a total dork! Synonyms: jerk, schmo; nerd, geek.
- dorm — dormitory.
- dorn — A British ray; the thornback.
- dorp — a village; hamlet.
- dorr — Also, dorbeetle [dawr-beet-l] /ˈdɔrˌbit l/ (Show IPA). a common European dung beetle, Geotrupes stercorarius.
- dors — Plural form of dor.
- dort — Dordrecht.
- dory — a boat with a narrow, flat bottom, high bow, and flaring sides.
- dour — sullen; gloomy: The captain's dour look depressed us all.
- drop — a small quantity of liquid that falls or is produced in a more or less spherical mass; a liquid globule.
- drow — (fantasy gaming) a fictional race of dark elves in various fantasy settings, such as Dungeons & Dragons.
- dtor — (computing) abbreviation of destructor.
- duro — a peso of Spain or Spanish America.
- ebro — a river flowing SE from N Spain to the Mediterranean. About 470 miles (755 km) long.
- eorl — an Anglo-Saxon nobleman
- ergo — Therefore.
- eros — A winged figure of a child representing love and/or its power.
- esro — European Space Research Organization
- 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.
- faro — a seaport in S Portugal.
- flor — A film of yeast that develops on the surface of some wines during fermentation, produced deliberately in during the production of sherry.
- for- — indicating rejection or prohibition
- fora — a website or section of a website that is used for public discussion of a specific topic and on which users can submit or read messages: You should post your questions on a parenting message board and get support from other parents.
- forb — any herb that is not a grass or grasslike.
- forc — Early system on IBM 704. Listed in CACM 2(5):16 (May 1959).
- ford — Elizabeth Bloomer ("Betty") 1918–2011, U.S. First Lady 1974–77 (wife of Gerald R. Ford).
- fore — situated at or toward the front, as compared with something else.
- fork — an instrument having two or more prongs or tines, for holding, lifting, etc., as an implement for handling food or any of various agricultural tools.