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Shoal
01
a large number of fish swimming together
Example
As the fishermen approached, they noticed a massive shoal of shimmering sardines swirling beneath the surface of the water.
Dolphins are often seen herding shoals of fish, working together to corral their prey for an easy catch.
The predator silently stalked the edge of the shoal, waiting for the opportune moment to strike and snatch its meal.
Example
The fishing boat became stuck on a shoal near the coast.
A flock of birds rested on the shoal exposed by the low tide.
The map marked the shoal as a hazard for deep-draft ships.
03
a sandbank in a stretch of water that is visible at low tide
to shoal
01
to naturally or gradually grow shallower
Example
The river began to shoal as it approached the delta.
Erosion caused the ocean currents to shoal the coastline over time.
During the drought, the lake shoaled, leaving boats stranded near the shore.
02
to cause a body of water to become shallow
Example
The engineers worked to shoal the canal, allowing easier access for smaller boats.
The shifting sands shoaled the harbor entrance, restricting larger ships from entering.
They used dredging equipment to shoal specific areas for a controlled flow of water.