What part of speech is tail?

"Tail" can be several parts of speech depending on how it's used:

* Noun: This is the most common usage. It refers to the appendage at the end of an animal's body. Example: "The dog wagged its tail."

* Verb: It can mean to follow closely behind someone or something. Example: "The car tailed the suspect."

* Adjective: While less common, it can describe something that resembles a tail. Example: "The dress had a tail."

So, the part of speech for "tail" depends on the context of the sentence.