LTNS definition by Slang.net
This page explains what the acronym "LTNS" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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Someone you haven't chatted with for a while might start a conversation with LTNS. This acronym means "long time, no see," and (usually) it's an acknowledgment that you haven't been around much lately.
Most often, people use LTNS when they're happy to be chatting with you again, after you've been AFK for some time. Of course, the person who sent you LTNS still hasn't "seen" you. But chatting with you is close to the same thing.