Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym TNLN is...

TNLN is

  • Took Nothing, Left Nothing (Geocaching)

TNLN is also in:

Acronym Definition Searched: LTF NCCF U/O EDGE BEFE HISC ASM CE MUS TWG MCRD 40233 MCZ TRM NPGS