olemus
Merriam-Webster:
1: the act of connecting : the state of being connected: such as
1a: causal or logical relation or sequence
1b (1): contextual relation or association
1b (2): relationship in fact

näiteid
causal connection -- põhjuslik seos
connection between the cases -- kohtuasjade vaheline seotus
in connection -- seoses

vt ka
- seos (2)
- sidusus