Meaning of “shoal” in the English Dictionary

"shoal" in British English

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shoalnoun

uk /ʃəʊl/ us /ʃoʊl/

shoal noun (FISH)

[ C, + sing/pl verb ] a large number of fish swimming as a group:

We could see shoals of tiny fish darting around.
Piranhas often feed in shoals.

[ C usually plural ] informal a large number of things or people:

In the summer, tourists visit the city in shoals.

shoal noun (RAISED AREA)

[ C ] specialized geology a raised area of sand or rocks under the surface of the water

(Definition of “shoal” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"shoal" in American English

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shoalnoun [ C ]

us /ʃoʊl/

shoal noun [ C ] (LAND)

a raised bank of sand or rocks under the surface of the water

shoal noun [ C ] (FISH)

a large group of fish swimming together:

shoals of mackerel

(Definition of “shoal” from the Cambridge Academic Content Dictionary © Cambridge University Press)