Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 121 is...

121 is

  • Y (lower Case)

More Meanings For 121:

  • Y (lower Case)
  • One-to-One correspondence

121 is also in:

Acronym Definition Searched: DSA WGTS TIOBE TFB WSGA GRIN SK WR IMC TIM UBS SP WWW 28620 RS