Sit-in and Turnout

Sit-in noun - A form of civil disobedience in which demonstrators occupy seats and refuse to move.

Turnout and sit-in are semantically related. In some cases you can use "Turnout" instead a noun phrase "Sit-in".

Turnout noun - Attendance for a particular event or purpose (as to vote in an election).

Sit-in and turnout are semantically related. Sometimes you can use "Sit-in" instead a noun "Turnout".