Oxford Dictionary English service member noun noun BrE BrE//ˈsɜːvɪs membə(r)// ; NAmE NAmE//ˈsɜːrvɪs membər// (US English) Add to my wordlistjump to other resultsa person who serves in the armed forces (= a country's army, navy, etc.) The force is expected to involve about 5 000 service members from each nation.Check pronunciation: service member oxfordlearnersdictionaries.com