4-letter words containing o, i
- mozi — Mo-tze.
- naoi — a temple.
- nino — boy; child.
- nios — Netware Input/Output Subsystem
- niso — National Information Standards Organisation (USA). NISO Standards cover many aspects of library science, publishing, and information services, and address the application of both traditional and new technologies to information services.
- nodi — a difficult or intricate point, situation, plot, etc.
- noil — a short fiber of cotton, wool, worsted, etc., separated from the long fibers in combing.
- noir — black; noting the black numbers in roulette.
- noni — The Polynesian fruit tree Morinda citrifolia.
- nori — a seaweed having a mildly sweet, salty taste, usually dried, used in Japanese cookery mainly as a wrap for sushi.
- novi — a town in SE Michigan.
- obie — one of a group of awards given annually, beginning in 1956, by New York City's The Village Voice newspaper for achievement in the off-Broadway theater.
- obis — a long, broad sash tied about the waist over a Japanese kimono.
- obit — Informal. an obituary.
- obvi — (slang) obviously.
- odia — a member of a people of India living chiefly in Odisha (formerly Orissa) and neighbouring states
- odic — of an ode.
- odif — Open Document Interchange Format
- odin — the ruler of the Aesir and god of war, poetry, knowledge, and wisdom; Wotan: the chief god.
- oeic — open-ended investment company
- ogin — (UK, chiefly, nautical, and, navy) A large body of water including the sea or the ocean.
- ohia — a Hawaiian evergreen tree, Metrosideros polymorpha or Syzygium malaccense
- ohio — a state in the NE central United States: a part of the Midwest. 41,222 sq. mi. (106,765 sq. km). Capital: Columbus. Abbreviation: OH (for use with zip code), O.
- oiks — Plural form of oik.
- oils — A viscous liquid derived from petroleum, esp. for use as a fuel or lubricant.
- oily — smeared or covered with oil; greasy: an oily road surface.
- oink — to make the characteristic sound of a pig; grunt.
- oint — (now rare, poetic) To anoint.
- oise — a river in W Europe, flowing SW from S Belgium through N France to the Seine, near Paris. 186 miles (300 km) long.
- oita — a seaport on NE Kyushu, in S Japan.
- okie — a contemptuous term used to refer to a native of Okinawa.
- okri — Ben. born 1959, Nigerian writer; his books include the Booker-prizewinning The Famished Road (1991), Dangerous Love (1996), and In Arcadia (2002)
- olid — (rare) evil-smelling; fetid.
- olin — a male given name.
- olio — a dish of many ingredients.
- omit — to leave out; fail to include or mention: to omit a name from a list.
- omri — a king of Israel and the father of Ahab. I Kings 16:16–28.
- onia — Plural form of onium.
- onis — Plural form of oni.
- ooid — (geology) A small calcium carbonate or iron coated grain found on the seafloor.
- opia — Plural form of opium.
- opie — (obsolete) opium.
- oshi — (in sumo wrestling) a move in which an opponent is pushed backward or down.
- ossi — a native, inhabitant, or citizen of that part of Germany that was formerly East Germany
- otic — of or relating to the ear; auricular.
- otis — Elisha Graves, 1811–61, U.S. inventor.
- ovi- — egg or ovum
- ovid — (Publius Ovidius Naso) 43 b.c.–a.d. 17? Roman poet.
- oxid — a compound in which oxygen is bonded to one or more electropositive atoms.
- pion — the first meson to be discovered: it has spin 0 and may be positively or negatively charged or neutral; charged pions decay into a muon and a neutrino or antineutrino. Symbol: π.