What part of speech is the word main?

"Main" can be several parts of speech, depending on its usage:

* Adjective: This is the most common use, meaning "principal" or "most important."

* Example: "The main road was closed due to construction."

* Noun: It can refer to a pipe or conduit, usually for water.

* Example: "The main burst and flooded the basement."

* Verb: Less common, but it can mean "to be the principal part of" or "to make something the main part."

* Example: "The mayor mained the city's budget on infrastructure."

So, the part of speech depends on the context!