duet

Noun

• (ballet) a dance for two people (usually a ballerina and a danseur noble)

• a musical composition for two performers

• a pair who associate with one another
  • the engaged couple
    
  • an inseparable twosome
    

• two performers or singers who perform together

• two items of the same kind

Related words

• Synonyms: 
  pas de deux , duette , duo , couple , twosome