6-letter words containing i, o, a
- hagio- — indicating a saint, saints, or holiness
- haikou — a city on N Hainan island, in SE China.
- hairdo — the style in which a person's hair is cut, arranged, and worn; coiffure.
- haloid — Also, halogenoid [hal-uh-juh-noid, hey-luh-] /ˈhæl ə dʒəˌnɔɪd, ˈheɪ lə-/ (Show IPA). resembling or derived from a halogen.
- havior — (obsolete) behaviour; demeanor.
- hoagie — a hero sandwich.
- hoazin — Alternative form of hoatzin.
- holmia — the oxide of holmium
- hoodia — any of several succulent asclepiadaceous plants of the genus Hoodia, of southern Africa, the sap of which suppresses appetite
- iatro- — medicine, medical, medicinal
- idiota — (pejorative, slang) fool or imbecile.
- ifugao — a member of an agricultural people who inhabit Luzon, in the Philippines.
- ignaro — an ignoramus
- ikaros — Icarus.
- ina jo — (specification, language) [FDM?]
- incavo — the incised or hollowed out part of an intaglio carving
- inroad — a damaging or serious encroachment: inroads on our savings.
- iodate — Chemistry. a salt of iodic acid, as sodium iodate, NaIO 3 .
- ionarc — Indian Ocean National Association for Regional Cooperation
- ionian — of or relating to Ionia.
- isobar — Meteorology. a line drawn on a weather map or chart that connects points at which the barometric pressure is the same.
- isolda — a female given name, form of Iseult.
- isopag — a line drawn on a map connecting all points where ice exists at approximately the same period during winter.
- isotac — a line drawn on a map connecting all points where ice starts to melt at approximately the same period in spring.
- italo- — indicating Italy or Italian
- ivanov — Vsevolod Vyacheslavovich [fsye-vuh-luh t vyi-chyi-slah-vuh-vyich] /ˈfsyɛ və lət vyɪ tʃyɪˈslɑ və vyɪtʃ/ (Show IPA), 1895–1963, Russian playwright.
- izalco — an active volcano in W El Salvador. 6070 feet (1850 meters).
- jacobi — Abraham, 1830–1919, U.S. pediatrician, born in Germany.
- jailor — a person who is in charge of a jail or section of a jail.
- jibaro — an inhabitant of the rural regions of Puerto Rico.
- jivaro — a member of a group of American Indian peoples of eastern Ecuador and northern Peru, formerly renowned for their custom of preserving the hair and shrunken skin from the severed heads of enemies.
- joiada — Jehoiada.
- josiah — Also, Douay Bible, Josias [joh-sahy-uh s] /dʒoʊˈsaɪ əs/ (Show IPA). a king of Judah, reigned 640?–609? b.c. II Kings 22.
- jovial — endowed with or characterized by a hearty, joyous humor or a spirit of good-fellowship: a wonderfully jovial host.
- jovian — (Flavius Claudius Jovianus) a.d. 331?–364, Roman emperor 363–364.
- kairos — A propitious moment for decision or action.
- kaolin — a fine white clay used in the manufacture of porcelain.
- kaonic — of or relating to a kaon
- kation — a positively charged ion that is attracted to the cathode in electrolysis.
- katipo — A venomous spider, Latrodectus katipo, endemic to New Zealand.
- kimona — Alternative form of kimono.
- kochia — any plant of the widely distributed annual genus Kochia, esp K. Scoparia trichophila, grown for its foliage, which turns dark red in the late summer: family Chenopodiaceae
- kodiak — an island in the N Pacific, near the base of the Alaska Peninsula. 100 miles (160 km) long.
- kohima — a state in NE India. 6366 sq. mi. (16,488 sq. km). Capital: Kohima.
- kolima — a river in the NE Russian Federation in Asia, flowing NE to the Arctic Ocean. 1000 miles (1610 km) long.
- komati — a river in NE South Africa, N Swaziland, and SW Mozambique, flowing generally NE to the Indian Ocean. 500 miles (805 km) long.
- korari — a native New Zealand flax plant, Phormium tenax
- kowhai — a New Zealand tree, Sophora tetraptera, of the legume family, having clusters of golden-yellow flowers.
- kozani — a city in central Greece.
- kwaito — A style of popular music similar to hip hop, featuring vocals recited over an instrumental backing with strong bass lines.