👉 The term "mermaid" is a play on words. It originally refers to a type of sea creature that is typically depicted as being swaying back and forth in waves, resembling the shape of a fish. However, over time, it has been used to refer to any form of water movement, including the way currents move through bodies of water. So, "mermaid" can be seen as both a play on words and a metaphor for the fluid nature of water and its movements.