6-letter words starting with o
- okapis — Plural form of okapi.
- okayed — to put one's endorsement on or indicate one's approval of (a request, piece of copy, bank check, etc.); authorize; initial: Would you OK my application?
- okoume — gaboon.
- okrugs — Plural form of okrug.
- olaf i — (Olaf Tryggvessön) a.d. 969–1000, king of Norway 995–1000.
- olaf v — 1903–91, king of Norway 1957–91.
- olathe — a city in E Kansas.
- olav v — 1903–91, king of Norway 1957–91.
- olbers — Heinrich Wilhelm Matthäus [hahyn-rikh vil-helm mah-te-oo s] /ˈhaɪn rɪx ˈvɪl hɛlm mɑˈtɛ ʊs/ (Show IPA), 1758–1840, German astronomer and physician.
- olcott — Chauncey (Chancellor John Olcott) 1860–1932, U.S. tenor, actor, and songwriter.
- oldest — far advanced in the years of one's or its life: an old man; an old horse; an old tree.
- oldham — a city in Greater Manchester, in NW England.
- oldies — a popular song, joke, movie, etc., that was in vogue at a time in the past.
- oldish — somewhat old: an oldish man.
- oldman — (nonstandard) An old man.
- ole db — (database, programming) Microsoft's low-level application program interface (API) for access to data sources. "OLE" originally stood for Object Linking and Embedding and "DB" for database but Microsoft no longer ascribes these meanings.
- oleate — Chemistry. an ester or a salt of oleic acid.
- olefin — any member of the alkene series.
- olekma — a river in E Siberian Russia, flowing N to the Lena River. 820 miles (1319 km) long.
- olenek — a river in NE Russia, flowing E and N to the Laptev Sea. 1350 miles (2172 km) long.
- oleose — Oily.
- oleoyl — (organic chemistry, especially in combination) The univalent carbonyl radical derived from oleic acid.
- olfact — to detect the smell of (something)
- oligo- — indicating a few or little
- olinda — a city in NE Brazil, N suburb of Recife, on the Atlantic coast: beach resort.
- olingo — any raccoonlike, nocturnal, fruit-eating mammal of the genus Bassaricyon, inhabiting tropical jungles from Nicaragua to Peru and Bolivia and having large eyes and a long, ringed tail.
- oliver — one of the 12 paladins of Charlemagne. Compare Roland.
- olives — a female given name.
- olivet — a large floodlight having a single bulb.
- olivia — a female given name, form of Olive.
- ollamh — a wise man or expert in a particular field of knowledge
- ollies — Plural form of ollie.
- olmert — Ehud [ey-hoo d] /ˈeɪ hʊd/ (Show IPA), born 1945, Israeli politician: prime minister 2006–09.
- olmütz — a city in central Moravia, in the E Czech Republic.
- olonos — Erymanthus.
- omasal — of, relating to, or emanating from the omasum
- omasum — the third stomach of a ruminant, between the reticulum and the abomasum; the manyplies.
- ombro- — indicating rain
- ombuds — Plural form of ombud.
- omegas — Plural form of omega.
- omelet — eggs beaten until frothy, often combined with other ingredients, as herbs, chopped ham, cheese, or jelly, and cooked until set.
- omened — Attended by, or containing, an omen or omens; as, happy-omened day.
- omenta — a fold of the peritoneum connecting the stomach and the abdominal viscera forming a protective and supportive covering.
- omerta — secrecy sworn to by oath; code of silence.
- omigod — an exclamation of surprise, pleasure, dismay, etc
- ommiad — Omayyad.
- omnify — (transitive) To render universal; to enlarge.
- omnium — (cycling) A multiple race event in track cycling. Historically the omnium has had a variety of formats. Currently it consists of the following six events: flying lap, points race, elimination, individual pursuit, scratch race, and time trial.
- omolon — a river in NE Russia, flowing N to the Kolyma River. 600 miles (965 km) long.
- omotic — a proposed branch of the Afroasiatic family comprising a group of languages spoken in Ethiopia and often included within the Cushitic branch.