IPA: /ɑːrˈtɪl.ər.ɪst/
KK: /ɑrˈtɪl.ər.ɪst/
A person who operates large guns or cannons in the military.
The artillerist skillfully aimed the cannon during the battle.
Artillerist → It is formed from "artillerie" (from Old French, meaning artillery or military equipment) and "-ist" (meaning a person who practices or is concerned with). An artillerist is a person who operates or is skilled in the use of artillery.
Think of an 'artillery' expert ('artillerie') — the '-ist' indicates a person skilled in that field. This helps you remember that an artillerist is someone who works with artillery.