계단階段 stairs; staircase 계층階層 class 단계段階 phase; step 층계層階 stairs; staircase 계급階級 rank 계급장階級章 badge of rank; ensign 계단식階段式 being step-like; be terraced; being tiered 계명階名 note 계제階梯 step; course 계층적階層的 being hierarchical 계층적階層的 hierarchical 계층화階層化 stratification 다단계多段階 multilevel; multistage; pyramid 단계적段階的 being in stages 단계적段階的 phased 위계位階 grade of rank; hierarchy 위계질서位階秩序 order of rank; hierarchy 음계音階 scale