TIA
TIA definition by Slang.net
This page explains what the acronym "TIA" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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TIA stands for "thanks in advance." You're most likely to encounter this acronym at the end of messages in which someone has asked you to do something and assumes you're going to do it.
If you plan to do the task being asked of you, you can respond to TIA with URW or YW, both of which mean "you're welcome." If you don't plan to do the task, your response should likely be a bit more detailed ...