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

GCIS is

  • Grade Crossing Inventory System

GCIS is also in:

Acronym Definition Searched: PUFF ITRS ABSSOP OB LHI WEF 26743 MAA NCC 76304 CAPT BEST RTS YLD WVIT