quintet (n.)
- band
- brass
- cinque
- coaction
- collaboration
- collectivism
- collusion
- combo
- commensalism
- communalism
- communism
- community
- complicity
- concert
- concord
- concordance
- concurrence
- cooperation
- cooperativeness
- duet
- duo
- ecumenicalism
- ecumenicism
- ecumenism
- ensemble
- esprit
- fellowship
- fin
- five
- fiver
- fivesome
- group
- harmony
- morale
- mullet
- mutualism
- mutuality
- octet
- orchestra
- pentad
- pentagon
- pentagram
- pentahedron
- pentameter
- pentathlon
- quartet
- quint
- quintuplet
- reciprocity
- septet
- sestet
- sextet
- solidarity
- strings
- symbiosis
- symphony
- synergism
- synergy
- teamwork
- terzetto
- trio
- triumvirate
- troika
- woodwind