Meaning In any case
Type Acronym
Popularity ★ ★ ★ ★ ★  Popular
Usage Online Only (chat, messaging, e-mail)

IAC is an acronym that stands for in any case, which means, "whatever the situation may be..." It is primarily used when texting or chatting online.

The acronym is useful for emphasizing that you believe something or are going to do something regardless of anything else going on. You might say that it's one of the more stubborn acronyms.

Example "IAC, I think the class is a waste of time. I've already learned all that stuff before anyway."
Updated September 8, 2016
Information from PC.net