i
1 AmericanAlso called imaginary unit. the imaginary number .
a unit vector on thex -axis of a coordinate system.
noun
plural
I's, Is, i's, isthe ninth letter of the English alphabet, a vowel.
any spoken sound represented by the letterI ori, as inbig, nice, orski.
something having the shape of an I.
a written or printed representation of the letterI ori.
a device, as a printer's type, for reproducing the letterI ori.
pronoun
nominative
I,possessive
my, mine,objective
me,plural nominative
we,possessive
our, ours,objective
usthe nominative singular pronoun, used in referring to oneself, the person speaking, writing, or otherwise communicating.
noun
plural
I's(used to denote the narrator of a literary work written in the first person singular.)
Metaphysics. the ego.
abbreviation
interstate (used with a number to designate an interstate highway).
I-95.
the ninth in order or in a series.
(sometimes lowercase) the Roman numeral for 1.
Chemistry.iodine.
Biochemistry.isoleucine.
Electricity.current.
Logic.particular affirmative.
(italics)isotopic spin.
abbreviation
imperator.
incisor.
interest.
intransitive.
island.
isle; isles.
the typical ending of the first element of compounds of Latin words, as-o- is of Greek words, but often used in English with a first element of any origin, if the second element is of Latin origin.
cuneiform; Frenchify.
abbreviation
Independent.
Island; Islands.
Isle; Isles.
symbol
chem iodine
physics current
physics isospin
logic a particular affirmative categorial statement, such assome men are married, often symbolized asSiP CompareAEO 1
one SeeRoman numerals
abbreviation
Italy (international car registration)
noun
the ninth letter and third vowel of the modern English alphabet
any of several speech sounds represented by this letter, in English as inbite orhit
something shaped like an I
(in combination )
an I-beam
to pay meticulous attention to detail
pronoun
(subjective) refers to the speaker or writer
abbreviation
International
Islandor Isle
used between elements in a compound word Compare-o-
cuneiform
coniferous
symbol
Also called: j. the imaginary number √–1
suffix
of or relating to a region or people, esp of the Middle East
Iraqi
Bangladeshi
The number whose square is equal to −1. Numbers expressed in terms ofi are called imaginary or complex numbers.
Grammar
Seeme.
Etymology
Origin of I
First recorded before 900; Middle Englishik, ich, i, Old Englishic, ih; cognate with Gothicik, Germanich, Old Norseek, Latinego, Greekegṓ, Old Church Slavonicazŭ, Lithuanianaš, Sanskritahám
Related Words
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.