Focus on the pronunciation of IM
English definition of “IM”
› COMMUNICATIONS, INTERNET abbreviation for instant messaging: a service available on the internet that allows you to exchange written messages very quickly with someone who is using the internet at the same time: Some businesses use IM for quick updates on project status or meeting times. → See also chat noun, email noun, texting, Tweet™
› COMMUNICATIONS, INTERNET abbreviation for instant message: a written message that can be sent over the internet to someone who is using the internet at the same time: Thanks to the internet, students say that if they get stuck on a math problem, help is only an IM away.