13-letter words containing a, e, r, i, u
- inconstruable — unable to be construed
- incorruptable — Misspelling of incorruptible.
- incouragement — Archaic form of encouragement.
- incurableness — The state or condition of being incurable.
- india drugget — drugget (def 1).
- indian runner — one of a breed of domestic ducks.
- indian summer — a period of mild, dry weather, usually accompanied by a hazy atmosphere, occurring usually in late October or early November and following a period of colder weather.
- indisturbance — Freedom from disturbance; calmness; repose.
- indo-european — a large, widespread family of languages, the surviving branches of which include Italic, Slavic, Baltic, Hellenic, Celtic, Germanic, and Indo-Iranian, spoken by about half the world's population: English, Spanish, German, Latin, Greek, Russian, Albanian, Lithuanian, Armenian, Persian, Hindi, and Hittite are all Indo-European languages. Compare family (def 14).
- industrialise — Non-Oxford British standard spelling of industrialize.
- industrialize — to introduce industry into (an area) on a large scale.
- inequilateral — not equilateral; having unequal sides.
- injured party — victim
- inner harbour — a part of a harbour which is further inland
- inner sanctum — sanctum (def 2).
- inquire after — to seek information by questioning; ask: to inquire about a person.
- inquiry agent — a private detective
- instrumentals — Plural form of instrumental.
- insubordinate — not submitting to authority; disobedient: an insubordinate soldier.
- insupportable — not endurable; unbearable; insufferable: insupportable pain.
- integumentary — of, relating to, or like an integument.
- inter-assured — to make (a future event) sure; ensure: This contract assures the company's profit this month.
- intercellular — situated between or among cells.
- intercommunal — used or shared in common by everyone in a group: a communal jug of wine.
- intercultural — pertaining to or taking place between two or more cultures: intercultural exchanges in music and art.
- intergranular — located or occurring between granules or grains: intergranular corrosion.
- interjaculate — (transitive) To ejaculate (a remark, etc.) parenthetically.
- interlanguage — a language created or used for international communication.
- interlunation — the interlunar period.
- intermountain — located between mountains or mountain ranges: an intermontane lake.
- intermuscular — of or relating to muscle or the muscles: muscular strain.
- interneuronal — (neurology) Between neurons.
- interosculant — Mutually touching or intersecting.
- interosculate — to interpenetrate; inosculate.
- interquartile — Situated between the first and third quartiles of a distribution.
- interscapular — between the scapulae or shoulder blades.
- intersexually — In an intersexual way.
- intervalvular — Between valves.
- intracellular — within a cell or cells.
- intrapreneurs — Plural form of intrapreneur.
- intratelluric — Geology. located in, taking place in, or resulting from action beneath the lithosphere.
- intravenously — through or within a vein. Abbreviation: IV.
- involute gear — a gear tooth form that is generated by involute geometry
- ipecac spurge — a spurge, Euphorbia ipecacuanhae, of the eastern U.S.
- irregularness — Quality of being irregular.
- jesuit's bark — cinchona (def 2).
- julius caesar — Gaius Julius Caesar.
- junggar pendi — an arid region of W China, in N Xinjiang between the Altai Mountains and the Tian Shan
- junior league — any local branch of a women's organization, the Association of the Junior Leagues of America, Inc., the members of which are engaged in volunteer welfare work, civic affairs, etc.
- key signature — (in notation) the group of sharps or flats placed after the clef to indicate the tonality of the music following.