階

• Physical: Stairs, steps, terraces, or tiered platforms (common in palace or temple layouts).
• Social/Institutional: Rank, grade, official status, or the structural hierarchy of an administration.
• Abstract: Degree, stage, or level of attainment; a step in a process or level of understanding.

Primarily functions as a noun. It can also function as a classifier for stages of development or levels of intensity.

Contrast with 級: While both refer to steps or ranks, 階 tends toward the structural or institutional (the system of ranks or an overarching level), whereas 級 tends toward the sequential (a specific individual step or discrete increment).

Tang-period reading: *gæi. Semantic variant: U+5826; simplified form: U+9636.

• Ritual/Courtly Context: The glyph often serves as a marker of ritual status and protocol (e.g., who is permitted to stand on which step) rather than being purely architectural.
• Cultivation/Pedagogical Context: Often refers to "stages of progress" or "degrees of insight."