최고the highest; top 고등학교high school 고등학생high school student; high schooler 최고가the highest price; top price 최고급the highest grade; top-level 고교high school 고급high quality; high grade 고급반class for advanced learners; the highest-level class 고급품high-end product 고급화enhancement

최저the lowest; bottom 최저가the lowest price; lowest price 저급being low; being low-skilled 저음being low-pitched; being deep; low note 저층lower floors 저학년lower grade 최저치lowest value 동고서저east high and west low 저가being cheap; being low-end 저감reduction