Matter-of-course and Run of the mill

Matter-of-course adjective - Expected or depended upon as a natural or logical outcome.

Run of the mill and matter-of-course are semantically related In some cases you can use "Run of the mill" instead an adjective phrase "Matter-of-course".

Matter-of-course and run of the mill are semantically related in usual topic. Sometimes you can use "Matter-of-course" instead an adjective phrase "Run of the mill", if it concerns topics such as common.