等级 (děng jí) is a noun meaning 'class,' 'rank,' or 'grade,' indicating a position within a hierarchical system. The character 等 (děng) conveys the idea of 'category' or 'kind,' while 级 (jí) means 'level' or 'tier'; together, they emphasize structured differentiation — often based on quality, ability, status, or function. This term appears frequently in contexts involving classification, evaluation, or social/organizational structure.

You’ll encounter 等级 in education (e.g., student grade levels), technology (e.g., security clearance levels), sports (e.g., competition divisions), and biology (e.g., taxonomic ranks like species or genus). It’s neutral in register and commonly used in both formal reports and everyday speech — for instance, when comparing product quality ('this phone is a higher grade') or describing animal taxonomy ('the wolf belongs to a different taxonomic rank'). Unlike terms like 级别 (jí bié), which leans more toward human hierarchy or authority, 等级 carries a stronger sense of objective categorization.