# dredging

/ˈdɹɛdʒɪŋ/ (US) · /dɹˈɛdʒɪŋ/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/dredging
Updated: 2026-05-08

## Definition

the process of cleaning out the bottom of a river or lake by scooping up mud and sand. It is often done to make the water deeper for ships.

For teachers: the removal of sediment and debris from the bottom of lakes, rivers, or harbours. Often involves heavy machinery to maintain navigable depths or to extract minerals.

## Examples

- The city started dredging the harbour to allow larger ships to enter.
- Environmental groups expressed concern that the dredging of the riverbed would disturb local fish habitats.
- Extensive dredging was required to clear the silt that had accumulated after the flood, ensuring the canal remained viable for commercial transport.

## Usage notes

- Often functions as a gerund noun describing the industrial or environmental process.

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