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Base or BASE may refer to:

Brands and enterprises[edit]

  • Base (mobile telephony provider), a Belgian mobile telecommunications operator
  • Base CRM, an enterprise software company founded in 2009 with offices in Mountain View and Kraków, Poland
  • Base Design, an international design, communications, audiovisual, copywriting and publishing firm
  • Base FX, a visual effects and animation company founded in 2006 with studios in Beijing, Wuxi and Xiamen, China
  • Budapest Aircraft Services, callsign BASE



  • Base (exponentiation), the number b in an expression of the form bn, also the base of logarithms
  • Base (geometry), a side of a plane figure (for example a triangle) or face of a solid
  • Base (group theory), a sequence of elements not jointly stabilized by any nontrivial group element.
  • Base (topology), a type of generating set for a topological space
  • Radix or base, the number of distinct digits in a positional numeral system


Science and technology[edit]

Social science[edit]


  • Base (baseball), the first, second, and third base on a baseball diamond
  • Base, a position in some cheerleading stunts
  • BASE jumping, parachuting or wingsuit flying from a fixed structure or cliff
  • Base, a variant name for the children's game darebase

Other uses[edit]

See also[edit]