There are several synonyms for the term "wood spirit", with each carrying a different cultural or historical significance. In Norse mythology, these spirits were called "elfs" or "alviss", while in Slavic folklore, they were known as "lesovik". The term "Green Man" is often used in Celtic mythology to refer to a figure representing the fertility of nature, typically depicted with foliage or leaves emerging from his mouth, nose, or ears. In Native American culture, the term "katsina" is commonly used to describe the spirit of plants and trees. Other terms such as "nature spirit" or "forest spirit" may also be used interchangeably with "wood spirit".