\ ˈī-ˈem 
\
\IM'd; IM'ing
Definition of IM
(Entry 1 of 3)
: to send an instant message to
: to communicate by instant message
IM
abbreviationDefinition of IM (Entry 2 of 3)
im-
prefixDefinition of im- (Entry 3 of 3)
— see in-
Keep scrolling for more
Keep scrolling for more
Comments on IM
What made you want to look up IM? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Words of Snow and Ice Quiz
- Which of the following refers to thin, bending ice, or to the act of running over such ice?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Words of Snow and Ice Quiz
A selection of words from the chillier parts of t...
Take the quiz - Name that Thing: Toys and Games Edition
It's all fun and games until someone beats your h...
Take the quiz - True or False?
Test your knowledge - and maybe learn something a...
Take the quiz - SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share IM
Time Traveler for IM
The first known use of IM was in 1994
See more words from the same year