교우friend 교우school friend; colleague 우정friendship 학우school friend; classmate 교우brethren 급우classmate 동우회club 문방사우The Four Friends of the Study 문우literary friend 우방friendly nation; ally

군인soldier 군대military; troops 군사soldier; military; army 응원군reinforcements; troop support 청군blue team 학군단ROTC; Reserve Officers' Training Corps 해군navy; naval force 행군march; parade 회군withdrawal; retreat 강행군working intensively; working excessively