Instant messaging (IM), sometimes also called messaging or texting , consists of computer-based human communication between two users (private messaging) or more (chat room or group ) in real-time, allowing immediate receipt of acknowledgment or reply. Originally the Accusative Singular ended in -im, the Ablative Singular in -ī, and the Accusative Plural in -īs; but these endings have been largely displaced by -em, -e, and -ēs, the endings of Consonant-Stems. In this guide, you’ll learn exactly what “IM” means in text, where it came from, how people use it today, and what it reveals about online culture and communication habits. The meaning of IM is to send an instant message to. How to use IM in a sentence. This disambiguation page lists articles associated with the title IM. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. Driven by student discourse, IM Certified® curricula are rich, engaging core programs built around focus, coherence, and rigor. The curricula are trusted, expert-authored materials developed to equip all students to thrive in mathematics. Spark discussion, perseverance, and enjoyment of mathematics. What does IM stand for? IM abbreviation. Define IM at AcronymFinder.com. IMDb is the world's most popular and authoritative source for movie, TV and celebrity content. Find ratings and reviews for the newest movie and TV shows. Get personalized recommendations, and learn where to watch across hundreds of streaming providers. IM is short for instant message, a message directly sent from one person to another. IM is also short for Instant Messenger, a program that connects users to the Internet or network to send text messages. (Definition of IM from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press).