There are several synonyms for the term "fish trap." Some of the most common include "fish weir," "fish cage," "fish basket," and "fish pot." A fish weir is a structure made of poles or rocks that are placed in a river or stream to funnel fish into a net or basket. A fish cage is a container made of mesh or wire that can be submerged in water and used to trap fish. A fish basket is similar to a cage but is typically made of wicker or other natural materials. Finally, a fish pot is a type of trap that is baited with food to attract fish, which are then caught and kept inside the pot.