2I

2I or 2-I may refer to:

  • Kosmos-2I Soviet rocket
  • AceKard 2i, one of the Nintendo DS storage devices
  • Base 2i, or Quater-imaginary base
  • The binary icosahedral group 2I
  • SSH 2I (WA), now U.S. Route 97 in Washington
  • The 2i's Coffee Bar in London
  • Polikarpov 2I-N1, alternate name for the Polikarpov DI-1 fighter
  • Kosmos-2I 63S; see List of Kosmos satellites (1–250)
  • 2I/Borisov, the first known interstellar comet

See also

  • I2 (disambiguation)
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