9-letter words containing o, i, r, e, a
- iatrogeny — a disease caused by medical intervention or treatment
- ice apron — a structure built in a river upstream from a bridge pier or the like for protection against drifting ice.
- iceboater — a person who races iceboats, especially as a hobby or in competition.
- ideograms — Plural form of ideogram.
- ideograph — an ideogram.
- idolaters — Plural form of idolater.
- ignorable — to refrain from noticing or recognizing: to ignore insulting remarks.
- ignorance — the state or fact of being ignorant; lack of knowledge, learning, information, etc.
- iminourea — guanidine.
- imperator — an absolute or supreme ruler.
- in reason — a basis or cause, as for some belief, action, fact, event, etc.: the reason for declaring war.
- incourage — Archaic form of encourage.
- indeavors — Plural form of indeavor.
- indeavour — Archaic form of endeavour.
- inoperant — Not operant.
- inquorate — (of an assembly) unable to proceed effectively because not enough members are present to make up a quorum.
- interloan — a loan between one library and another
- iron gate — a gorge cut by the Danube through the Carpathian Mountains, between Yugoslavia and SW Romania. 2 miles (3.2 km) long.
- irrorated — Simple past tense and past participle of irrorate.
- isocrates — 436–338 b.c, Athenian orator.
- isomerase — any of a class of enzymes that catalyze reactions involving intramolecular rearrangements.
- isopteran — a member of the order Isoptera which includes social, colonizing insects such as termites
- iteration — the act of repeating; a repetition.
- jargonise — Alternative form of jargonize.
- jargonize — to talk jargon or a jargon.
- juniorate — a two-year course of study for a Jesuit novice in preparation for the course in philosophy.
- kairomone — A chemical substance emitted by an organism and detected by another of a different species that gains advantage from this, e.g., a parasite seeking a host.
- kaiserdom — The dignity, rank or office of a kaiser; the state of being a kaiser.
- keratosis — any skin disease characterized by a horny growth, as a wart.
- keratotic — any skin disease characterized by a horny growth, as a wart.
- ketonuria — the presence of ketone bodies in the urine.
- kiteboard — A specialized light weight wakeboard used for kiteboarding.
- laborites — Plural form of laborite.
- labourite — a member or supporter of the Labour party.
- lamproite — (geology) Any of several volcanic rocks having a high potassium content.
- lattimore — Richmond Alexander, 1906–84, U.S. poet, translator, and critic, born in China.
- lavoisier — Antoine Laurent [ahn-twan loh-rahn] /ɑ̃ˈtwan loʊˈrɑ̃/ (Show IPA), 1743–94, French scientist: pioneer in the field of chemistry.
- legionary — of, relating to, or belonging to a legion.
- leporidae — an animal of the family Leporidae, comprising the rabbits and hares.
- liberator — a four-engined heavy bomber widely used over Europe and the Mediterranean by the U.S. Army Air Force in World War II. Symbol: B-24.
- lionheart — a person of exceptional courage and bravery.
- literator — littérateur.
- loaferish — (of a person) idle, lazy
- localizer — (computing) A person who localizes.
- lone pair — shoes, eyes
- macrolide — Any of a class of antibiotics containing a lactone ring, of which the first and best known is erythromycin.
- madrileno — a native or inhabitant of Madrid, Spain.
- mailorder — Ordered to be delivered to one's home.
- malipiero — Gian Francesco [jahn frahn-che-skaw] /dʒɑn frɑnˈtʃɛ skɔ/ (Show IPA), 1882–1973, Italian composer.
- manticore — a legendary monster with a man's head, horns, a lion's body, and the tail of a dragon or, sometimes, a scorpion.