relationship
noun
[ rɪˈleɪʃ(ə)nʃɪp ]
• the way in which two or more people or things are connected, or the state of being connected.
• "the study will assess the relationship between unemployment and political attitudes"
Similar:
connection,
relation,
association,
link,
correlation,
correspondence,
parallel,
tie-in,
tie-up,
alliance,
bond,
interrelation,
interconnection,
interdependence of,