Mace and Shill

Mace noun - A ceremonial staff carried as a symbol of office or authority.

Shill and mace are semantically related In some cases you can use "Shill" instead a noun "Mace".

Shill noun - A decoy who acts as an enthusiastic customer in order to stimulate the participation of others.

Mace and shill are semantically related in bat topic. Sometimes you can use "Mace" instead a noun "Shill", if it concerns topics such as baton for hitting.