Shoal
WordNet
noun
(1) A large group of fish
"A school of small glittering fish swam by"
(2) A stretch of shallow water
(3) A sandbank in a stretch of water that is visible at low tide
verb
(4) Become shallow
"The lake shallowed over time"
(5) Make shallow
"The silt shallowed the canal"
WiktionaryText
Noun
- A large number of fish of the same species swimming together.
- A sandbank or sandbar creating a shallow.
- A large group of marine invertebrates or squid that move as a unit.
Verb
- To arrive at a shallow (or less deep) area.
- To cause a shallowing.