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English dictionary — definitions & meanings

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“I” Words

inventiveness
noun
The quality of being inventive; the faculty of inventing.
inventor
noun
A person who creates or designs something new.
inventory
noun
The full stock of goods a business or location currently has.
inveracity
noun
A lack of veracity
Inverness
name
A city in the Scottish Highlands, regarded as the region's administrative centre.
inverse
adj
Opposite in effect, order, or position.
inversely proportional
adjective
Related in such a way that when one quantity increases, the other decreases by the same factor, so that multiplying the two together always gives the same number.
inversion
noun
The act of turning something upside down, inside out, or into reverse order.
inversionism
noun
Homosexuality, regarded as sexual inversion.
invert
verb
To turn (something) upside down or inside out; to place in a contrary order or direction; to make (something) the opposite of it.
invertebrate
noun
An animal without vertebrae (i.e., without a backbone).
inverted
adj
Turned upside down or reversed in order, direction, or position.
invest
verb
To put money into something, such as a business, property, or shares, in the hope of making a profit.
invested
adj
Emotionally involved in something or genuinely caring about its outcome.
investigate
verb
To look into something carefully in order to find out the facts.
investigation
noun
A careful and systematic inquiry into the facts of a matter.
investigative
adj
Relating to or involving investigation, especially into wrongdoing.
investigator
noun
A person whose job is to investigate something, such as a crime or accident.
investing
noun
The practice of putting money into assets such as stocks, property, or a business to earn a return.
investiture
noun
The act of investing, as with possession or power; formal bestowal or presentation of a possessory or prescriptive right.
investment
noun
Money put into something, such as a business or property, with the goal of making a profit.
investor
noun
A person or organization that puts money into something, such as a business or the stock market, to earn a profit.
inveterate
adj
Firmly established from having been around for a long time; of long standing.
invidious
adj
Causing ill will, envy, or offense.
invigilate
verb
To oversee a test or exam.
invigorate
verb
To impart vigor, strength, or vitality to.
invigorated
adj
Feeling full of energy or strength; refreshed and revitalized
invigorating
adj
Making someone feel stronger, healthier, and more energetic.
invincible
adj
Impossible to defeat or overcome; too strong or powerful to beat.
inviolable
adj
Not violable; not to be infringed.
invisibility
noun
The state or quality of not being able to be seen.
invisible
adj
Not able to be seen, either because it is hidden or because it does not reflect light.
invisibly
adv
In a way that can not be seen; in an invisible manner.
invitation
noun
A request for someone to attend an event or take part in something.
invitational
adj
Restricted to participants who have specifically been invited.
invite
verb
To ask someone to come to an event or take part in something.
invited
adj
Having been asked to attend an event or take part in something.
inviting
adj
Attractive or tempting, making you want to come closer or take part.
invocate
verb
To implore or invoke.
invocation
noun
The act or form of calling for the assistance or presence of some superior being, especially prayer offered to a divine being.
invocational
adj
Of or relating to an act of invocation.
invocatory
adj
Containing or characterized by invocation; invoking.
invoice
noun
A document sent by a seller to a buyer listing goods or services provided and the amount owed.
invoicing
noun
The issuing of an invoice.
invoke
verb
To call on something, such as a rule, law, or higher power, for support or justification.
involuntarily
adv
Without conscious control or intention.
involuntary
adj
Done without conscious control or against one's will.
involute
adj
Difficult to understand; complicated.
involution
noun
Entanglement; a spiralling inwards; intricacy.
involutional
adj
of or pertaining to involution
involve
verb
To include something as a necessary part.
involved
adj
Taking part in or connected to something, especially a situation, activity, or relationship.
involvement
noun
The fact or state of taking part in or being connected to something.
invulnerability
noun
The state of being invulnerable.
invulnerable
adj
Impossible to harm, damage, or injure.
invulnerably
adv
In an invulnerable manner.
inward
adj
Located on or facing the inside; internal.
inwardly
adv
In an inward manner; to or toward the inside or to oneself.
inwardness
noun
The characteristic of being inward or directed towards the inside.
inwards
adv
Toward the inside or center.
inwomb
verb
To place or cause to be contained in the womb; to make pregnant; to conceive.
inwork
noun
Indoor work; work done inside the home.
inwrought
adj
Having a design that has been worked or woven in.
io
noun
A large yellow North American moth known for the eye-like spots on its hindwings.
iodate
noun
The anion IO₃⁻; any salt of iodic acid.
iode
noun
Synonym of iodine.
iodic
adj
of, or relating to iodine or its compounds, especially those in which it has a valency of five
iodide
noun
A binary compound of iodine and another element or radical.
iodine
noun
A chemical element, symbol I, used in medicine, photography, and as a nutrient needed by the thyroid gland.
iodise
verb
Non-Oxford British English standard spelling of iodize.
iodize
verb
To treat or react with iodine.
iodous
adj
Of, pertaining to, or containing iodine
ion
noun
An atom or molecule that has gained or lost electrons, giving it an electric charge.
Iona
name
A small island in the Inner Hebrides, Scotland, historically an important center of Celtic Christianity; also used as a female given name.
ione
name
A city in Amador County, California, United States.
Iong
name
A surname of Portuguese origin.
ionic
adj
Relating to or made up of ions.
Ions
name
A surname originating from a Northumberland variant of John plus the patronymic suffix "-s."
ios
name
An island of the Cyclades, Greece.
iota
noun
The ninth letter of the Greek alphabet.
IOU
noun
An informal written note acknowledging a debt, from the phrase "I owe you."
Iowa
noun
A Native American people originally from the region that is now the U.S. state of Iowa, or a member of this people.
Ip
name
A Cantonese surname, romanized from the Chinese 葉/叶.
IP address
noun
A number assigned to a device so that other devices on a network can find it and send data to it, in the same way a postal address tells a courier where to deliver a parcel.
iPad
noun
Apple's tablet computer, a flat touchscreen device used for browsing, media, and light work without a keyboard.
iPhone
noun
Apple's line of smartphones, known for their touchscreen and integration with Apple's other devices.
IPO
noun
Short for initial public offering — the first time a company sells shares to the general public on a stock exchange.
iPod
noun
Apple's portable digital music player, popular in the 2000s for letting people carry thousands of songs in their pocket.
Ipswich
name
A port town and county town of Suffolk, England, also the name of a city in Queensland, Australia.
IQ
noun
Short for intelligence quotient, a score from a standardized test meant to measure reasoning ability relative to the average.
Iqbal
name
A male given name and surname of Arabic origin.
Ira
name
A male given name of Hebrew origin, mostly used in America, meaning "watchful."
irade
noun
A decree issued by a Muslim ruler.
Iran
name
A country in the Middle East, officially the Islamic Republic of Iran, with Tehran as its capital.
Iranian
adj
Relating to Iran, its people, or its culture.
iranic
adj
Pertaining to the Iranic languages or their speakers.
Iraq
name
A country in the Middle East, officially the Republic of Iraq, with Baghdad as its capital and largest city.
Iraqi
adj
Relating to Iraq, its people, or its culture.
irascible
adjective
Easily made angry; quick-tempered by nature.
irate
adj
Extremely angry, especially in a way that's directed at someone or something specific.
ire
noun
Intense anger; wrath, especially the kind provoked by a specific offense.
Ireland
name
An island in northwestern Europe, and the country occupying most of it (distinct from Northern Ireland, part of the UK).
Irene
noun
In Greek mythology, the goddess who personified peace.
Irfan
name
A male given name of Arabic origin, common especially in Pakistan.
iridescence
noun
The condition or state of being iridescent; exhibition of colors like those of the rainbow; a prismatic play of color.
iridescent
adj
Producing a display of lustrous, rainbow-like colors; prismatic.
iridin
noun
A toxic isoflavone, the 7-glucoside of irigenin.
iridium
noun
A hard, brittle, silvery-white metallic element (atomic number 77) in the platinum group, the most corrosion-resistant metal known.
iridize
verb
To point or tip with iridium.
Irina
name
A female given name of Russian origin, related to the English name Irene.
iris
noun
The coloured ring of muscle around the pupil of the eye that controls how much light gets in.
Irish
adj
Relating to Ireland, its people, or its culture.
Irish twins
noun
Two siblings born to the same mother within about twelve months of each other, so that they are close in age but not actually twins.
Irishman
noun
A man from Ireland.
irk
verb
to irritate; annoy; bother
IRL
abbreviation
In real life; in the physical world rather than online, in a game, or on social media.
Irma
name
A female given name of Germanic origin.
iron
noun
A common, silvery-grey metal that rusts and is attracted to magnets; the main ingredient of steel.
ironclad
adj
So solid or certain that it cannot reasonably be disputed or broken.
ironed
adj
Pressed smooth with a hot iron; free of wrinkles.
ironic
adj
Involving irony — meaning, or resulting in, the opposite of what was expected or intended.
ironical
adj
Characterized by or constituting (any kind of) irony.
ironically
adv
In a way that involves irony; used to point out the ironic aspect of something being described.
ironing
noun
The act of pressing clothes with a hot iron to remove wrinkles.
ironmongery
noun
Tools and hardware that can be bought in an ironmonger's shop.
irons
noun
Metal shackles used to restrain someone's wrists or ankles.
ironside
noun
A trooper in the Parliamentarian cavalry formed by English political leader Oliver Cromwell in the 17th century, during the English Civil War.
irony
noun
A situation or statement in which the actual outcome or meaning is the opposite of what was expected.
irradiance
noun
The act of irradiating; emission of rays of light.
irradiate
adj
Made brilliant or bright; irradiated, illuminated.
irradiated
adj
Exposed to radiation, such as X-rays, gamma rays, or other forms deliberately applied for imaging or sterilization.
irrational
adj
Not based on logic or reason; unfounded or nonsensical.
irrationally
adv
In a way that doesn't follow logic or reason.
irreclaimable
adj
Incapable of being reclaimed; not reclaimable.
irreconcilable
adj
Unable to be reconciled; opposed; uncompromising.
irrecondite
adj
Not recondite; well-known.
irrefragable
adj
Which cannot be refuted; clearly right, incontrovertible, indisputable, irrefutable.
irrefutable
adj
Impossible to deny or disprove; certain beyond argument.
irregardless
adj
Irrespective, regardless.
irregular
adj
Not following a regular pattern, schedule, or set of rules.
irregularity
noun
Something that deviates from what's normal, expected, or standard, or the state of being irregular.
irregularly
adv
In an irregular manner; without rule, method, or order.
irrelation
noun
The state of being irrelative or unrelated; a lack of connection or relation.
irrelationship
noun
Quality of irrelation; lack of relationship.
irrelative
adj
Having no relations to each other; unrelated.
irrelevance
noun
Lack of relationship with the topic at hand; lack of importance.
irrelevant
adj
Not connected to or useful for the matter at hand.
irreligion
noun
The state of being irreligious; irreligious sentiment or thought.
irreligious
adj
Having no relation to religion.
irremediable
adj
Unable to be remedied, cured, corrected or repaired; irreparable, incurable.