5-letter words containing a, o
- noway — in no way, respect, or degree; not at all; nowise: He was noway responsible for the accident.
- noxal — (in law, esp Roman law) of or relating to damage done by a person (usually a slave) or animal belonging to or in the charge of another
- noyau — A liqueur made of brandy flavored with fruit kernels.
- o'day — Anita (Anita Belle Colton) 1919–2006, U.S. jazz singer.
- oaked — (of wine) matured in an oak barrel or other container.
- oaken — made of oak: the old oaken bucket.
- oakum — loose fiber obtained by untwisting and picking apart old ropes, used for caulking the seams of ships.
- oaniu — Onitsha Ado National Improvement Union
- oapec — Organization of Arab Petroleum Exporting Countries
- oared — furnished with oars.
- oases — a small fertile or green area in a desert region, usually having a spring or well.
- oasis — something serving as a refuge, relief, or pleasant change from what is usual, annoying, difficult, etc.: The library was an oasis of calm in the hectic city.
- oasts — Plural form of oast.
- oaten — of, relating to, or made of oats.
- oater — a movie, television show, etc., about the frontier days of the U.S. West; western; horse opera.
- oates — Joyce Carol, born 1938, U.S. novelist and short-story writer.
- oaths — Plural form of oath.
- obad. — Obadiah
- obama — Barack (Hussein), Jr [buh-rahk hoo-seyn] /bəˈrɑk huˈseɪn/ (Show IPA), born 1961, 44th president of the U.S. since 2009.
- obang — a Japanese gold coin, rectangular in shape, that is no longer in common usage and is only used as a ceremonial or special contribution
- obeah — a form of belief involving sorcery, practiced in parts of the West Indies, South America, the southern U.S., and Africa.
- obuda — a city in and the capital of Hungary, in the central part, on the Danube River: formed 1873 from two cities on the W bank of the Danube (Buda and Obuda) and one on the E bank (Pest)
- ocala — a city in central Florida.
- occam — William of, died 1349? English scholastic philosopher.
- occas — occasion
- ocean — the vast body of salt water that covers almost three fourths of the earth's surface.
- ochoa — Severo [suh-vair-oh;; Spanish se-ve-raw] /səˈvɛər oʊ;; Spanish sɛˈvɛ rɔ/ (Show IPA), 1905–93, U.S. biochemist, born in Spain: Nobel Prize in medicine 1959.
- ocrea — a sheathing part, as a pair of stipules united about a stem.
- octa- — eight
- octad — a group or series of eight.
- octal — Also, octonary. of or relating to the number system with base 8, employing the numerals 0 through 7.
- octan — (of a fever) occurring every eighth day.
- octas — Plural form of octa.
- odema — Misspelling of oedema.
- ofays — a contemptuous term used to refer to a white person.
- offal — the parts of a butchered animal that are considered inedible by human beings; carrion.
- ofgas — Office of Gas Supply: merged with Offer in 1999 to form Ofgem
- oflag — a World War II German internment camp for war prisoners of officer rank.
- ofwat — Office of Water Services: a government body set up in 1989 to regulate the activities of the water companies in England and Wales, and to protect the interests of their consumers
- ogham — an alphabetical script used originally for inscriptions in an archaic form of Irish, from about the 5th to the 10th centuries.
- ohana — An extended Hawaiian family unit.
- oidia — one of the conidia that are borne in chains by certain fungi.
- okapi — an African mammal, Okapia johnstoni, closely related to and resembling the giraffe, but smaller and with a much shorter neck.
- okara — A food made from soybean pulp; a by-product of soy milk production.
- okays — Plural form of okay.
- okina — The Hawaiian apostrophe-like letter (\u02bb) used to indicate the glottal stop consonant.
- okla. — Oklahoma
- oktas — Plural form of okta.
- oland — an island in SE Sweden, separated from the mainland by Kalmar Sound. 26,750; 519 sq. mi. (1345 sq. km).
- oldas — On-line Digital Analog Simulator. An interactive version of MIMIC, for IBM 360.