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

TNNS is

  • Tenneco Newport News Shipbuilding

TNNS is also in:

Acronym Definition Searched: MCEC ABGB WSEC DVLA WFFA TVG WGUF MW 92G WBDC BEAR SCPI CMD APL 28631