7-letter words that end in in
- hussain — Nasser (ˈnæsə). born 1968, British cricketer born in India; played in 96 test matches for England (1990–2004), 56 as captain
- hussein — 1935–1999, king of Jordan 1953–99.
- in vain — excessively proud of or concerned about one's own appearance, qualities, achievements, etc.; conceited: a vain dandy.
- inchpin — the sweetbread of a deer
- ingrain — to implant or fix deeply and firmly, as in the nature or mind.
- inhibin — (biochemistry) A peptide hormone, secreted by the gonads, which inhibits the secretion of follicle-stimulating hormone and is thus under consideration as a male contraceptive.
- insulin — Biochemistry. a polypeptide hormone, produced by the beta cells of the islets of Langerhans of the pancreas, that regulates the metabolism of glucose and other nutrients.
- iris-in — the gradual appearance of an image or scene through an expanding circle.
- isospin — isotopic spin.
- istomin — Eugene, 1925–2003, U.S. concert pianist.
- jack in — abandon, quit
- jacklin — Tony, full name Anthony Jacklin. born 1944, English golfer: won the British Open Championship (1969) and the US Open Championship (1970)
- jacobin — (in the French Revolution) a member of a radical society or club of revolutionaries that promoted the Reign of Terror and other extreme measures, active chiefly from 1789 to 1794: so called from the Dominican convent in Paris, where they originally met.
- jalapin — a resin that is one of the purgative principles of jalap.
- javelin — a light spear, usually thrown by hand.
- jocelin — a female given name, form of Joyce.
- join in — participate
- jump in — to spring clear of the ground or other support by a sudden muscular effort; leap: to jump into the air; to jump out a window.
- kalinin — Mikhail Ivanovich [myi-khuh-yeel ee-vah-nuh-vyich] /myɪ xʌˈyil iˈvɑ nə vyɪtʃ/ (Show IPA), 1875–1946, Russian revolutionary: president of the U.S.S.R. 1923–46.
- kaverin — Veniamin [ven-yuh-meen;; Russian vyi-nyi-uh-myeen] /ˌvɛn yəˈmin;; Russian vyɪ nyɪ ʌˈmyin/ (Show IPA), (Veniamin Aleksandrovich Zilberg) 1902–1989, Russian novelist.
- keep in — to stay indoors
- keratin — a scleroprotein or albuminoid substance, found in the dead outer skin layer, and in horn, hair, feathers, hoofs, nails, claws, bills, etc.
- kevalin — a person who is free of karmic matter, detached, and omniscient; Tirthankara.
- khamsin — a hot southerly wind, varying from southeast to southwest, that blows regularly in Egypt and over the Red Sea for about 50 days, commencing about the middle of March.
- kick in — to strike with the foot or feet: to kick the ball; to kick someone in the shins.
- kidskin — leather made from the skin of a young goat; kid.
- kinchin — a child.
- kindlin — (protein) Any of a group of adhesion plaque proteins that activate integrins.
- kinetin — a synthetic cytokinin, C 10 H 9 ON 5 , that retards senescence in plants.
- kingpin — Bowling. headpin. the pin at the center; the number five pin.
- kitchin — Obsolete form of kitchen.
- kosygin — Aleksei Nikolayevich [uh-lek-sey nik-uh-lah-yuh-vich;; Russian uh-lyi-ksyey nyi-kuh-lah-yi-vyich] /əˈlɛk seɪ ˌnɪk əˈlɑ yə vɪtʃ;; Russian ʌ lyɪˈksyeɪ nyɪ kʌˈlɑ yɪ vyɪtʃ/ (Show IPA), 1904–80, Russian politician: premier of the U.S.S.R. 1964–80.
- kremlin — the Kremlin. the executive branch of the government of Russia or of the Soviet Union, especially in regard to its foreign affairs. the citadel of Moscow, including within its walls the chief offices of the Russian and, formerly, of the Soviet government.
- kristin — a female given name, form of Christine.
- kutchin — a member of a group of North American Indians who live in the region of the lower Mackenzie River in northwestern Canada and the Yukon and Porcupine rivers of northeastern Alaska.
- kweilin — Guilin.
- l chain — Immunology. either of an identical pair of polypeptides in the antibody molecule that lie parallel to the upper parts of the heavy chain pair and are half the molecular weight.
- ladykin — (often used as a term of endearment) a little lady.
- lambkin — a little lamb.
- laminin — a glycoprotein in animal tissue that is important in binding together the molecules which form the extracellular matrix
- lanolin — a fatty substance, extracted from wool, used in ointments, cosmetics, waterproof coatings, etc.
- le guin — Ursula K(roeber) born 1929, U.S. science fiction writer, novelist, and poet (daughter of Alfred Louis Kroeber).
- le nain — Antoine [ahn-twan] /ɑ̃ˈtwan/ (Show IPA), ("the Elder") 1588?–1648, and his two brothers Louis [lwee] /lwi/ (Show IPA) (“the Roman”), 1593?–1648, and Mathieu [ma-tyœ] /maˈtyœ/ (Show IPA) 1607–77, French painters.
- lead-in — something that leads in or introduces; introduction; opening.
- legumin — a globulin obtained from the seeds of leguminous and other plants.
- levulin — a substance obtained from certain bulbs, such as that of the dahlia, which resembles dextrin and which, on hydrolysis, forms laevulose
- ligroin — a flammable mixture of hydrocarbons that boils at from 20°C to 135°C, obtained from petroleum by distillation and used as a solvent.
- limpkin — a large, loud-voiced, wading bird, Aramus guarauna, intermediate in size and character between the cranes and the rails, of the warmer regions of America.
- live in — Also, sleep-in. residing at the place of one's employment: a live-in maid.
- live-in — Also, sleep-in. residing at the place of one's employment: a live-in maid.