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  • IM
    IM
    noun
    instant message.
  • I'm
    I'm
    contraction of I am.
  • im-
    im-
    variant of in- before b, m, p: imbrute; immigrate; impassion.
  • -im
    -im
    a plural ending occurring in loanwords from Hebrew.
  • im
    im
    abbreviation
    Isle of Man
Synonyms

IM

1 American  
[ahy-em] / ˈaɪˈɛm /

noun

plural

IMs, IM's

  1. instant message.

  2. instant messaging.

verb (used without object)

IM'd, IMed, IM'ing, IMing

  1. instant message.

IM 2 American  

abbreviation

  1. Swimming. individual medley.

  2. Sports. intramural.

  3. Also I.M. Isle of Man.

I'm 3 American  
[ahym] / aɪm /

  1. contraction of I am.

im- 4 American  

  1. variant of in- before b, m, p: imbrute; immigrate; impassion.

im- 5 American  

  1. variant of in- before b, m, p: imbalance; immoral; imperishable.

im- 6 American  

  1. variant of in- before b, m, p: imbed; immure; impose.

-im 7 American  

  1. a plural ending occurring in loanwords from Hebrew.

    cherubim.
IM 1 British  

abbreviation

  1. computing instant messaging

  2. Also: i.m..  intramuscular

  3. chess International Master

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
I'm 2 British  
/ aɪm /

contraction

  1. I am

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
im- 3 British  

prefix

  1. a variant of in- 1 in- 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
im 4 British  

abbreviation

  1. Isle of Man

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

See contraction.

Etymology

Origin of IM1

First recorded in 1990–95

Origin of -im7

From Hebrew

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“It was a gut punch of a call to get but i’m so grateful for my time there,” Wakim wrote Wednesday on Instagram in a post announcing the news.

From Los Angeles Times • Sep. 2, 2025

On Instagram, in a post featuring a series of videos that appear to document Halsey receiving infusions, Halsey wrote: “long story short, i’m Lucky to be alive.”

From New York Times • Jun. 4, 2024

Altman said in a post on X, "i'm looking forward to returning to openai."

From Reuters • Nov. 22, 2023

“Hi, i’m fine,” she later said on Instagram.

From Seattle Times • Jun. 30, 2023

WGrayson7: now i'm not so sure, willupleasebequiet: why?

From "Will Grayson, Will Grayson" by John Green and David Levithan

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.