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

HLLV is

  • Heavy Lift Launch Vehicle

HLLV is also in:

Acronym Definition Searched: CSEC GBST 24873 COS CPEA RBM 59468 JPA GTY WFR 42528 CVSD WNSB RMS WEKX