Search by letter: I
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Search by letter: I
- Ichthyology: The Scientific Study of Fishes Ichthyology
- Ichthyophiidae — Asiatic tailed caecilians Ichthyophiidae
- Ichthyophis beddomei (Beddome's caecilian) Ichthyophis beddomei
- Ichthyornis: a toothed seabird of the Late Cretaceous Ichthyornis
- Ichthyosaur (extinct Mesozoic marine reptile) Ichthyosaur
- Ichthyosaurus — Early Jurassic marine reptile genus Ichthyosaurus
- Ichthyovenator: Early Cretaceous Asian spinosaurid with a split dorsal sail Ichthyovenator
- Icicle: formation, characteristics, hazards and cultural notes Icicle
- Icing
- Icing (food): types, ingredients, history and uses Icing (food)
- Icing (ice hockey): rule, types, enforcement and impact Icing (ice hockey)
- Icknield Street (Ryknild Street): Roman road from Bourton to Templeborough Icknield Street
- iCloud — Apple’s cloud storage and services platform iCloud
- ICN Business School
- Ico Aguilar (Francisco Javier Aguilar García) — Spanish football forward Ico Aguilar
- Icogne: a mountain municipality in Valais, Switzerland Icogne
- Icon: religious image, theology, history and use Icon
- Icon (disambiguation)
- Icona Pop: Swedish Electropop Duo and International Dance-Pop Act Icona Pop
- Iconoclasm: destruction of images, monuments, and cultural symbols Iconoclasm
- Iconostasis: the liturgical screen of Eastern Christian churches Iconostasis
- Icosagon (20-sided polygon) Icosagon
- Icosahedron
- Icosikaitetragon (Icositetragon) Icosikaitetragon
- ICQ: Pioneering Instant Messaging Service and Its Influence ICQ
- ICS Bégué — French private business school in Paris ICS Bégué
- Icterids: New World blackbirds, orioles and their relatives Icterid
- Icy moon
- id Software — Pioneering First‑Person Shooter Developer id Software
- Id, Ego, and Superego — Freud's Structural Model of the Psyche Id, ego and super-ego
- Ida B. Wells — Journalist, Anti‑Lynching Campaigner, and Suffrage Advocate Ida B. Wells
- Ida County, Iowa — overview and key facts Ida County, Iowa
- Ida Grove, Iowa — county seat and small city in western Iowa Ida Grove, Iowa
- Ida Haendel: Life, Career, and Legacy of a Violinist Ida Haendel
- Ida Lupino: Actor, Filmmaker, and Pioneer in American Cinema Ida Lupino
- Ida of Bernicia
- Ida Pollock: British Romance Novelist (1908–2013) Ida Pollock
- Ida Rubinstein: Russian-born dancer, actress and patron (1885–1960) Ida Rubinstein
- Ida Saxton McKinley — First Lady of the United States (1897–1901) Ida Saxton McKinley
- Ida Siekmann — first known casualty of the Berlin Wall Ida Siekmann
- Ida Vitale — Uruguayan poet, critic and translator Ida Vitale
- Ida‑Viru County Ida-Viru County
- Idabel, Oklahoma
- Idaho: geography, history, economy and cultural overview Idaho
- Idaho City: historic mining town in Boise County, Idaho Idaho City, Idaho
- Idaho County, Idaho
- Idaho Falls
- Idaho State University — public research university in Pocatello, Idaho Idaho State University
- Idalou, Texas
- Idaux-Mendy
- Idea: concept, formation, influence, and study Idea
- Ideal gas (idealized gas model) Ideal gas
- Ideal gas law
- Idealism (philosophy): the primacy of mind, ideas, and perception Idealism
- Idempotence: definition, mathematical forms and uses in computing Idempotence
- Identical twins (monozygotic twins) Identical twins
- Identity
- Identity (mathematics)
- Identity (philosophy)
- Identity element (neutral element) Identity element
- Identity politics: concepts, history, and contemporary debates Identity politics
- Identity theft: causes, common types, consequences and prevention Identity theft
- Identity Thief (2013 film) Identity Thief
- Ideogram: symbols that convey ideas and concepts Ideogram
- Ideology: definitions, types, history and political significance Ideology
- Ider, Alabama
- Ides of March
- Idi Amin Dada: Ugandan military ruler and 1970s dictator Idi Amin
- Idina Menzel
- Idiom (figurative expression) Idiom
- Idiopathic pulmonary fibrosis: overview, features, diagnosis and management Idiopathic pulmonary fibrosis
- Idiophone: instruments that sound from their own material Idiophone
- Idiot (term) Idiot
- Idir (Hamid Cheriet) — Algerian Kabyle singer-songwriter Idir
- Iditarod Trail Sled Dog Race Iditarod
- Idle Hands (1999 film) Idle Hands
- Ido: an international auxiliary language derived from Esperanto Ido
- Idol: religious images, cultural icons, and the debate over representation Idol
- Idolatry: worship of images, cultural history, and modern meanings Idolatry
- Idomeneo: Mozart's Early Opera seria and Its Significance Idomeneo
- Idre — village and mountain resort in Dalarna, Sweden Idre
- Idrija: Slovenian mercury town and centre of lace-making Idrija
- Idrijca: a river of western Slovenia and its natural park Idrijca
- Idris Elba
- Idris Muhammad (1939–2014): American jazz drummer and session musician Idris Muhammad
- Idris Sardi
- Idriss Carlos Kameni
- Idriss Déby Itno Idriss Déby
- Idrissa Ouédraogo: Burkinabé filmmaker and storyteller Idrissa Ouédraogo
- Idriz Ajeti — Kosovo Albanologist and Educator (1917–2019) Idriz Ajeti
- Idron — commune in Pyrénées-Atlantiques, southwestern France Idron
- IDS Center — Minneapolis landmark and tallest building in Minnesota IDS Center
- Idukki district, Kerala Idukki district
- Iðavöllr — the splendor-plain of Norse myth Iðavöllr
- Iðunn — Norse goddess of youth and keeper of the golden apples Iðunn
- IEC 61850 — Communication Standard for Power Utility Automation IEC 61850
- IEEE 1394 (FireWire): A high-speed serial bus standard IEEE 1394
- IEEE 802.11 (Wi‑Fi): standards, technology, and everyday use IEEE 802.11
- IEEE 802.1aq (Shortest Path Bridging): overview, function, and uses IEEE 802.1aq
- IELTS — International English Language Testing System: overview, format, uses IELTS
- Ieng Sary (1925–2013) — Khmer Rouge leader and former foreign minister Ieng Sary
- Ieng Thirith
- Iepe Rubingh
- IÉSEG School of Management
- If: the conditional conjunction and Kipling's poem If
- If: Beyoncé R&B ballad from B'Day (Deluxe Edition) If (Beyoncé song)
- If and only if (logical biconditional) If and only if
- IF Björklöven — ice hockey club from Umeå, Sweden IF Björklöven
- IF Brommapojkarna (BP): Stockholm football club and youth academy IF Brommapojkarna
- IF Elfsborg
- If I Had You (Adam Lambert song)
- If I Never See Your Face Again
- If I Ran the Zoo
- If I Were a Boy
- If My Homie Calls — song by 2Pac from 2Pacalypse Now If My Homie Calls
- If Only You Were Lonely (Hawthorne Heights album) If Only You Were Lonely
- IF Sylvia — Swedish football club from Norrköping IF Sylvia
- If U Seek Amy — Britney Spears song, pop wordplay and controversy If U Seek Amy
- IF Vesta — Uppsala sports club with bandy and football traditions IF Vesta
- If You Asked Me To (song) If You Asked Me To
- If You Had My Love — Jennifer Lopez song If You Had My Love
- Iffwil — Municipality in Bern-Mittelland, Switzerland Iffwil
- IFK Eskilstuna — Swedish football club and 1921 national champions IFK Eskilstuna
- IFK Göteborg — Swedish football club with European success IFK Göteborg
- IFK Holmsund — Swedish sports club with a historic football presence IFK Holmsund
- IFK Luleå — Swedish sports club IFK Luleå
- IFK Malmö: Football club from Malmö with a long local tradition IFK Malmö
- IFK Norrköping — Swedish football club IFK Norrköping
- IFK Sundsvall — Swedish football club from Sundsvall IFK Sundsvall
- Ifriqiya: Medieval North African Province and Its Historical Legacy Ifriqiya
- Iftar — The Evening Meal to Break the Ramadan Fast Iftar
- IG Farben: German chemical conglomerate, history, wartime role and legacy IG Farben
- IG Field: Winnipeg's multi-use stadium on the University of Manitoba campus IG Field
- Ig Nobel Prize — awards honoring research that make people laugh, then think Ig Nobel Prize
- IGA Australia: independent supermarket network and local retail banner IGA Australia
- Iga Province (Iga no kuni) — historical province of Japan Iga Province
- Igavere, Harju County (Estonia) Igavere, Harju County
- Igbo language: overview, features, and cultural significance Igbo language
- Igbo people: history, language, culture and global diaspora Igbo people
- Iğdır — city in eastern Turkey Iğdır
- Igersheim, a town in Baden-Württemberg, Germany Igersheim
- Iggy Arbuckle
- Iggy Azalea
- Iggy Pop — American rock singer and cultural icon Iggy Pop
- Igis (former Swiss municipality) Igis
- Iglesia ni Cristo (Church of Christ) Iglesia ni Cristo
- Iglesias (Sardinia) Iglesias, Sardinia
- Igloo: traditional snow shelter of the Arctic Igloo
- IGN — video game and entertainment website IGN
- Ignace Murwanashyaka — founder and leader of the FDLR (1963–2019) Ignace Murwanashyaka
- Ignacio de Veintemilla
- Ignacio Gutiérrez — Chilean journalist and television presenter Ignacio Gutiérrez
- Ignacio López Tarso: Mexican stage, film and television actor Ignacio López Tarso
- Ignacio Noguer Carmona: Spanish Roman Catholic Bishop (1931–2019) Ignacio Noguer Carmona
- Ignacio Pichardo Pagaza (1935–2020) Ignacio Pichardo Pagaza
- Ignacio Trelles — Mexican football player and coach (1916–2020) Ignacio Trelles
- Ignacio Zaragoza: Mexican general who led the Battle of Puebla Ignacio Zaragoza
- Ignacio Zoco — Spanish defensive midfielder and Real Madrid stalwart Ignacio Zoco
- Ignacy Gogolewski: Polish stage and film actor (1931–2022) Ignacy Gogolewski
- Ignacy Jan Paderewski — Polish pianist, composer and statesman Ignacy Jan Paderewski
- Ignatios Lappas
- Ignatius of Antioch (Theophorus): early Christian bishop, martyr, and writer Ignatius of Antioch
- Ignatius of Loyola
- Ignatius Zakka I Iwas — Syriac Orthodox Patriarch (1933–2014) Ignatius Zakka I Iwas
- Ignaucourt — a small commune in the Somme, northern France Ignaucourt
- Ignaz Kirchner — German stage actor (1946–2018) Ignaz Kirchner
- Ignaz Semmelweis: pioneer of antiseptic practice and infection control Ignaz Semmelweis
- Ignazio Cassis: Swiss physician and federal politician Ignazio Cassis
- Igneous rock: formation, types, and uses Igneous rock
- Ignition
- Ignition (The Offspring album) Ignition (album)
- Ignition (Remix) — R. Kelly song Ignition (Remix)
- Ignition system
- Ignoratio elenchi: the fallacy of irrelevant conclusion Ignoratio elenchi
- Ignosticism
- Igon — Commune in Pyrénées-Atlantiques, southwest France Igon
- Igor Akinfeev — Russian goalkeeper and long-serving CSKA Moscow captain Igor Akinfeev
- Igor Chislenko — Soviet footballer (1939–1994) Igor Chislenko
- Igor Decraene — Belgian junior time trial champion (1996–2014) Igor Decraene
- Igor M. Diakonov: Soviet-Russian Assyriologist and Historical Linguist Igor Diakonov
- Igor Dodon — Moldovan politician and former president Igor Dodon
- Igor Duljaj — Serbian defensive midfielder and former Shakhtar Donetsk player Igor Duljaj
- Igor Fesunenko (1933–2016): Soviet and Russian journalist, broadcaster and professor Igor Fesunenko
- Igor Gorynin: Russian metallurgist and developer of titanium and reactor steels Igor Gorynin
- Igor Ivanov — Russian diplomat and former foreign minister Igor Ivanov
- Igor Korobov: Chief of the GRU (1956–2018) Igor Korobov
- Igor Korolev — Russian-Canadian ice hockey centre and coach Igor Korolev
- Igor Kurnosov — Russian Chess Grandmaster (1985–2013) Igor Kurnosov
- Igor Luchenok — Belarusian composer and cultural figure Igor Luchenok
- Igor Lukšić — Montenegrin politician and diplomat Igor Lukšić
- Igor Matovič — Slovak politician and former prime minister Igor Matovič
- Igor Mitoraj: sculptor of classical fragments and monumental form Igor Mitoraj
- Igor Muradyan
- Igor Pashkevich: Soviet-born figure skater, European medalist and coach Igor Pashkevich
- Igor Rodionov
- Igor Sergun — Director of the GRU (Main Intelligence Directorate) Igor Sergun
- Igor Shafarevich — Russian mathematician and public intellectual Igor Shafarevich
- Igor Shpilband — Soviet ice dancer and international ice dance coach Igor Shpilband
- Igor Sikorsky: Pioneer of Large Aircraft and Practical Helicopters Igor Sikorsky
- Igor Solopov — Estonian table tennis player and 1992 Olympian Igor Solopov
- Igor Stravinsky
- Igor Tudor — Croatian footballer and coach Igor Tudor
- Igor Petrovich Volk — Soviet test pilot and cosmonaut Igor Volk
- Igoumenitsa — Coastal Port City in Epirus, Greece Igoumenitsa
- Iguaçu Falls: Geography, Ecology, History, and Visitor Guide Iguaçu Falls
- Iguana (genus Iguana) Iguana
- Iguanodon: Early Cretaceous Ornithopod Dinosaur Iguanodon
- Iguanodonts: herbivorous ornithopods and their place in dinosaur classification Iguanodont
- iHeartMedia: U.S. Radio Broadcaster and Digital Audio Company IHeartMedia
- Iholdy — commune in Pyrénées-Atlantiques, France Iholdy
- IHOP (International House of Pancakes) IHOP
- Ii — meanings, uses, and notable instances Ii
- Ii, Finland
- Iisalmi
- Iitate (Iitate-mura), Village in Fukushima Prefecture Iitate, Fukushima
- Iizuka, Fukuoka
- Ij — city in Estahban County, Fars Province, Iran Ij, Iran
- Ijevan — city and administrative centre of Tavush Province, Armenia Ijevan
- Ijiraq — an irregular moon of Saturn Ijiraq (moon)
- IJsselmuiden — village on the IJssel in the municipality of Kampen IJsselmuiden
- IJsselstein: city and municipality in the province of Utrecht IJsselstein
- Ijtihad: Independent Legal Reasoning in Islamic Law Ijtihad
- IK Brage — association football club from Borlänge, Sweden IK Brage
- IK Oddevold
- IK Sleipner: Football club from Norrköping IK Sleipner
- Ikaalinen, Finland Ikaalinen
- Ike Turner: musician, bandleader and pioneering record producer Ike Turner
- IKEA — Swedish furniture retailer and designer of flat-pack home goods IKEA
- Ikebana: The Japanese Art of Living Flower Arrangement Ikebana
- Ikeja — capital and commercial district of Lagos State, Nigeria Ikeja
- Iken, Suffolk Iken
- Iker Casillas: Spanish goalkeeper, club and international career overview Iker Casillas
- Iki Province (Iki no Kuni) — historical island province of Japan Iki Province
- iKON (South Korean boy band) IKON
- Ikorodu — city and local government area in Lagos State, Nigeria Ikorodu
- Ikšķile, Latvia Ikšķile
- Ikue Ōtani — Japanese voice actress best known as the voice of Pikachu Ikue Ōtani
- Ikuo Matsumoto — Japanese football player and manager Ikuo Matsumoto
- Ikuo Takahara
- Ikyawann (Indian television series) Ikyawann
- Il Canto degli Italiani (Inno di Mameli) Il Canto degli Italiani
- Il Canzoniere (Petrarch's Rerum vulgarium fragmenta) Il Canzoniere
- Il Guarany (opera by Antônio Carlos Gomes) Il Guarany
- Il ritorno d'Ulisse in patria
- Il trovatore
- Ilagan — Capital City of Isabela, Philippines Ilagan
- Ilaiyaraaja — Indian composer, songwriter and film music pioneer Ilaiyaraaja
- Ilam District, Nepal Ilam District
- Ilam Municipality — hill town of eastern Nepal known for tea and hilly landscapes Ilam Municipality
- Ilan Ramon — Israeli Air Force Pilot and First Israeli Astronaut Ilan Ramon
- Ilanz (Glion): town in Surselva, Graubünden, Switzerland Ilanz
- Ilaria Latini — Italian voice actress and dubbing performer Ilaria Latini
- Ilaria Occhini: Italian actress known for film, stage and television work Ilaria Occhini
- Ilbono (Irbòno) — town and comune in Sardinia, Italy Ilbono
- Île d'Oléron: French Atlantic island — geography, history and highlights Île d'Oléron
- Île-de-Bréhat — island and commune off the coast of Brittany, France Île-de-Bréhat
- Île-de-France: region, administration and significance Île-de-France
- Ilene Woods — American singer and the voice of Disney's Cinderella Ilene Woods
- Ileum: structure, function, and clinical importance Ileum
- Ilfis — a river of the Entlebuch and upper Emmental Ilfis
- Ilford — town in Greater London and administrative centre of Redbridge Ilford
- Ilford railway station: Elizabeth line commuter station in the London Borough of Redbridge Ilford railway station
- Ilfracombe, North Devon coastal town Ilfracombe
- Ilham Aliyev — President of Azerbaijan Ilham Aliyev
- İlhan Mansız — Turkish forward and former international footballer İlhan Mansız
- Ilhan Omar — Somali‑American U.S. Representative and progressive leader Ilhan Omar
- Ilharre — commune in Pyrénées-Atlantiques, southwestern France Ilharre
- Ilia (Elis): Western Peloponnese region of Greece Ilia
- Iliad — the ancient Greek epic poem of the Trojan War Iliad
- Ilian Stoyanov (Bulgarian footballer) Ilian Stoyanov
- Ilie Balaci — Romanian football midfielder and manager Ilie Balaci
- Ilie Bărbulescu (1957–2020), Romanian football defender Ilie Bărbulescu (footballer)
- Ilija Petković (1945–2020) — Serbian footballer and manager Ilija Petković
- Ilir Meta: Albanian Politician, Founder of LSI, Prime Minister and President Ilir Meta
- Ilișeşti — commune in Suceava County, Romania Ilişeşti
- Ilium (bone) — structure, function, and clinical relevance Ilium
- Ilium (novel) Ilium (book)
- İlkay Gündoğan
- Ilkka Hanski — Finnish ecologist and metapopulation researcher Ilkka Hanski
- Ilkka Laitinen: Finnish border official and first Frontex executive Ilkka Laitinen
- Ilkka Nummisto — Finnish Olympic canoeist and strongman (1944–2019) Ilkka Nummisto
- Ilkka Sinisalo — Finnish NHL forward, scout, and international hockey figure Ilkka Sinisalo
- Ilkley, West Yorkshire: town, moorland and visitor attractions Ilkley
- Ill — river of Alsace in northeastern France Ill (France)
- Illampu — prominent Bolivian peak of the Cordillera Real Illampu
- Illapel — city and capital of Choapa Province, Coquimbo Region Illapel
- Illats — commune in Gironde, Nouvelle-Aquitaine, France Illats
- Ille-et-Vilaine
- Illeana Douglas: American actress and film presenter Illeana Douglas
- Illegal drug trade: overview, markets, impacts and enforcement Illegal drug trade
- Illegal drugs: definition, categories, history, and impacts Illegal drugs
- Illegal immigration
- Iller–Lech Plateau (Upper Swabian Plateau) Iller-Lech Plateau
- Illfurth: a commune in Haut‑Rhin, Grand Est, France Illfurth
- Illgau — Municipality in the canton of Schwyz, Switzerland Illgau
- Illhaeusern — Alsatian riverside commune noted for cuisine and heritage Illhaeusern
- Illiat — commune in the Ain department of eastern France Illiat
- Illimani: Prominent Peak of the Bolivian Andes Illimani
- Illinois: geography, history, economy and culture Illinois
- Illinois Attorney General