Previous question and Rules of order

Previous question noun - A motion calling for an immediate vote on the main question under discussion by a deliberative assembly.

Rules of order and previous question are semantically related. In some cases you can use "Rules of order" instead a noun phrase "Previous question".

Rules of order noun - A body of rules followed by an assembly.

Previous question and rules of order are semantically related. Sometimes you can replace phrase "Previous question" with "Rules of order", this phrases are similar.