This is the 7838th most frequent Russian word.
казус
An unusual case, incident, or awkward situation.
"Казус" here refers to an incident or case, often an unusual or exceptional situation.
Этот казус стал поводом для долгого обсуждения.
This incident became the subject of a long discussion.
In this context, "казус" denotes a legal case or a point for analysis.
Юридический казус был разобран в суде.
The legal case was analyzed in court.
Here, "казус" is used to mean a technical issue or mishap.