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117,830 words — headwords with part of speech, pronunciation, and a plain-language definition.

Hécate
proper noun
Hecate (Greek goddess of crossroads and witchcraft)
Héctor
proper noun
Hector; a male given name from Ancient Greek, equivalent to English Hector
Hécuba
proper noun
Hecuba (the wife of King Priam)
Hégira
proper noun
Hegira (emigration of Muhammad from Mecca to Medina); alternative letter-case form of hégira (emigration)
Hélade
proper noun
Hellas (Greek name for Greece, usually referring to ancient Greece)
Hélice
proper noun
Helix (nebula)
Hércules
proper noun
Hercules
Híades
proper noun
Hyades (daughters of Atlas); Hyades (an open cluster)
I
adjective
abbreviation of ilustre
I Región
proper noun
Former name of the Tarapacá region in Chile.
I+D
noun, feminine
R&D: abbreviation of investigación y desarrollo (“research and development”)
IA
noun, feminine
initialism of inteligencia artificial (AI (artificial intelligence)); initialism of incidencia acumulada (CI (cumulative incidence))
IAM
noun, masculine
initialism of infarto agudo de miocardio (“acute myocardial infarction”)
IANSA
noun, feminine
abbreviation of Industria Azucarera Nacional
IBEX
proper noun
initialism of Índice Bursátil Español, the main stock market index code for the Spanish stock market, the Bolsa de Madrid
IBI
noun
acronym of impuesto sobre bienes inmuebles
IBSA
proper noun
IBSA (India, Brazil, and South Africa)
ICC
proper noun
ICC (International Chamber of Commerce)
ICE
proper noun
initialism of Instituto Costarricense de Electricidad (“Costa Rican Electricity Institute”).; initialism of Instituto de Ciencias del Espacio (“Institute of Space Sciences”).
ICE
proper noun
initialism of Izquierda Comunista de España (“Communist Left of Spain”).
ICE
proper noun
Servicio de Inmigración y Control de Aduanas de Estados Unidos; ICE.
ICEX
proper noun
initialism of Instituto Español de Comercio Exterior
ICFT
noun, masculine
GFCI
IDH
proper noun
initialism of Índice de desarrollo humano: HDI
IECA
noun, masculine
initialism of inhibidor de la enzima convertidora de angiotensina (“ACE inhibitor”)
IEP
proper noun
initialism of Instituto de Estudios Peruanos; initialism of Instituto para la Economía y la Paz
IEP
noun, masculine
plan educativo individualizado; IEP.
IES
noun, feminine
initialism of Instituto de Educación Secundaria (“institute of secondary education”), equivalent to high school + college in the UK
IFE
proper noun
initialism of Instituto Federal Electoral; the Mexican body for controlling elections
IG
proper noun
Instagram
IG
noun, masculine
a user account belonging to Instagram.; a message sent using Instagram.
IGIC
noun, masculine
acronym of impuesto general indirecto canario (“value added tax”)
IGME
proper noun
acronym of Instituto Geológico y Minero de España (the Geological and Mining Institute of Spain)
IGN
proper noun
initialism of Instituto Geográfico Nacional (the Guatemalan national geographic institute); initialism of Instituto Geográfico Nacionall (the Spanish national geographic institute)
IGV
noun, masculine
acronym of impuesto general a las ventas (“VAT (value added tax)”)
II Región
proper noun
Former name of the Antofagasta region in Chile.
III Región
proper noun
Former name of the Atacama region in Chile.
ILE
noun, feminine
acronym of interrupción legal del embarazo (“legal termination of pregnancy”), an induced abortion
IMAO
noun, masculine
acronym of inhibidor de la monoaminooxidasa (“monoamine oxidase inhibitor”); MAOI
IMC
noun
initialism of índice de masa corporal (“BMI (body mass index)”)
IME
noun, feminine
initialism of Industria Maquiladora de Exportación
IMSS
proper noun
initialism of Instituto Mexicano del Seguro Social (“Mexican Social Security Institute”)
INAH
proper noun
initialism of Instituto Nacional de Antropología e Historia (National Institute of Anthropology and History)
INDEC
proper noun
acronym of Instituto Nacional de Estadística y Censos de Argentina (“National Institute of Statistics and Census of Argentina”)
INEGI
proper noun
acronym of Instituto Nacional de Estadística y Geografía (“National Institute of Statistics and Geology”), a constitutionally-established government agency in Mexico
INSS
proper noun
initialism of Instituto Nacional de la Seguridad Social
IOPC
proper noun
IOPC
IPC
noun, masculine
initialism of índice de precios al consumo (“consumer price index, CPI”)
IPIM
noun, masculine
initialism of índice de precios internos al por mayor (“index of internal wholesale prices”)
IRA
noun, feminine
initialism of insuficiencia renal aguda (“acute renal failure”): ARF
IRAM
proper noun
abbreviation of Instituto de Normalización y Certificación (Institute of Standardization and Certification)
IRPF
noun, masculine
initialism of Impuesto sobre la Renta de las Personas Físicas, a personal income tax in Spain
IRS
proper noun
Servicio de Impuestos Internos de los Estados Unidos; IRS.
ISIS
proper noun
ISIS (Islamic State of Iraq and Syria)
ISO
proper noun
ISO (International Organization for Standardization)
ISRS
noun, masculine
initialism of inhibidor selectivo de la recaptación de serotonina (“selective serotonin reputake inhibitor (SSRI)”)
ITS
noun, masculine
STI (sexually transmitted infection)
ITU
noun, feminine
initialism of infección del tracto urinario
ITV
noun, masculine
acronym of Inspección Técnica de Vehículos (“MOT (UK), vehicle inspection (US)”)
IU
proper noun
initialism of Izquierda Unida