渫

Core senses include:

1. (Transitive) To dredge; scooping out mud, silt, or debris from a channel, ditch, or pond to restore flow.

2. (Resultative/Intransitive) The surging, pouring, or violent outflow of water.

Typically functions as a transitive verb taking a waterway or bed of silt as its object. In descriptive contexts lacking a clear agent or object, the "surging/outflow" sense is more likely.

In the context of clearing waterways:

• 渫 focuses specifically on the removal of silt and mud (scooping).
• 浚 refers to deepening a channel (excavating).
• 疏 refers to unblocking or clearing in a general sense.

Readings include //xiè// and //xié//. The glyph is often used as a semantic variant of 瀉 (U+6CC4), shifting the focus from the labor of dredging to the resulting flow of water.