Trust is defined as correct expectations about others’ actions that must precede monitoring.

Evidence

Seventhly, and for the moment most importantly, I am using the word ‘trust’ in the sense of correct expectations about the actions of other people that have a bearing on one’s own choice of action when that action must, be chosen before one can monitor the actions of those others. — Diego Gambetta, Trust - Making and Breaking Cooperative…, 790

Categorization

• DEFINE: A precise working definition codifying trust as expectation formed before monitoring becomes possible.
• XREF: This is exactly Luhmann’s concept of ‘familiarity’ versus ‘trust’ expanded to a definition — the reader’s stated analytical integration maps directly onto this passage.