Big-timer and Dignitary

Big-timer noun - One of high position or importance within a group.

Dignitary and big-timer are semantically related in important topic. In some cases you can use "Dignitary" instead a noun phrase "Big-timer".

Dignitary noun - An important or influential (and often overbearing) person.

Big-timer and dignitary are semantically related in important topic. Sometimes you can use "Big-timer" instead a noun "Dignitary".