Polysemy refers to the phenomenon of a single word having multiple meanings. For example, the word "bank" can refer to a financial institution, the edge of a river, or a row of seats in a stadium.
Other terms related to word meaning include:
* Homonymy: Words that sound the same but have different meanings (e.g., "bear" the animal and "bear" to carry).
* Synonymy: Words that have similar meanings (e.g., "happy" and "joyful").
* Antonymy: Words that have opposite meanings (e.g., "hot" and "cold").