Definitions of trio:

  • noun:   a musical composition for three performers
  • noun:   three people considered as a unit
  • noun:   a set of three similar things considered as a unit
  • noun:   three performers or singers who perform together
  • noun:   the cardinal number that is the sum of one and one and one
  • name:  A surname (very rare: popularity rank in the U.S.: #67019)