A mermaid is half-human and half-fish, often depicted as beautiful and mythical creatures. They usually live underwater, and some people love to imagine what they'd be like if such beings existed.
The word "mermaid" can make you think of movies, books, or even aquariums where you might see a mermaid show. You might hear about a theme park having a mermaid attraction, or someone mentioning that their grandma used to tell stories about mermaids when they were little. People often use the term in a fun and imaginative way, but it can also be used more literally in scientific contexts, for example, in biology to describe certain fish with human-like features.
A mythological creature with a woman's head and upper body, and a tail of a fish.
