interchangeable
1. [ adjective ] of or relating to or suggestive of complementation
Synonyms: reciprocal complementary
Examples:

"interchangeable electric outlets"

Related terms: reciprocal
2. [ adjective ] capable of replacing or changing places with something else
Synonyms: similar standardised standardized exchangeable
Examples:

"interchangeable parts"

Related terms: replaceable
3. [ adjective ] (mathematics, logic) such that the arguments or roles can be interchanged
Examples:

"the arguments of the symmetric relation, `is a sister of,' are interchangeable"

Related terms: logic symmetrical
4. [ adjective ] capable of replacing or changing places with something else
Synonyms: similar standardized exchangeable
Examples:

"interchangeable parts"

Related terms: replaceable
Similar spelling:   interchangeably
  interchangeability
  interlanguage
  interior_angle
  intersecting
  internal_ear
  intermingled
  interlocking