角

• Physical and Spatial: animal horn; geometric angle, corner, vertex, or point; the edge of an object or a remote location.
• Abstract and Competitive: contest of strength or wrestling (//jiǎolì//); stubbornness or conflict (metaphorically "locking horns").
• Musicological (reading //jué//): the fourth note of the traditional pentatonic scale (//gōng, shāng, jué, zhǐ, yǔ//). This usage is specific to contexts involving ritual tuning, instruments, or seasonal correspondences.
• Astronomical: a proper noun referring to the first lunar mansion (associated with the star Spica), appearing in texts concerning divination, calendrics, or celestial observation.

There is a primary distinction between the spatial/physical senses (reading //jiǎo//) and the musicological sense (reading //jué//). These generally belong to entirely different semantic universes—architecture, geography, and anatomy versus ritual tuning and sonic frequency.

Ambiguity between the spatial and musical readings is typically resolved by the surrounding technical vocabulary; ritual terminology will signal the musicological sense, while architectural or geographical descriptions signal the spatial sense.