Noun
An enemy in war.
Source: Webster's dictionarya soldier must be prepared to kill his enemies Source: Internet
The Sergeant of Police and his corps arrive to announce their readiness to arrest the pirates ("When the foeman bares his steel"). Source: Internet
"Though in body and in mind" (Reprise of "When the foeman bares his steel") (Mabel, Sergeant, and Chorus of Police) * 23a. Source: Internet