Shallow
Part of speech: adjective
Definition: Having little depth; significantly less deep than wide. Extending not far downward. Concerned mainly with superficial matters. Lacking interest or substance.
Part of speech: noun
Definition: A shallow portion of an otherwise deep body of water.
Part of speech: verb
Definition: To make or become less deep
Example sentence: Women on the whole are often not as shallow as men are. They can be, but they cut through things a little more easily than men do in terms of that superficial stuff.
Shoal
Part of speech: noun
Definition: 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.
Part of speech: verb
Definition: To arrive at a shallow (or less deep) area.To cause a shallowing.