deserter
/ˈdɛzərtər/Definitions
1. noun
a person who abandons their duty, especially a soldier who leaves their military unit without permission.
“The court-martialed soldier was found guilty of being a deserter and sentenced to prison.”
2. verb
to abandon one’s duty, especially a soldier who leaves their military unit without permission.
“She deserted her post and ran away from the war zone.”