Shoal - Definition

n 1: a sandbank in a stretch of water that is visible at low
tide
2: a stretch of shallow water [syn: shoal, shallow]
3: a large group of fish; "a school of small glittering fish
swam by" [syn: school, shoal]
v 1: make shallow; "The silt shallowed the canal" [syn:
shallow, shoal]
2: become shallow; "the lake shallowed over time" [syn:
shallow, shoal]