What part of speech is the word thousands?

"Thousands" can be a few different parts of speech depending on its role in a sentence:

* Noun: When referring to the number itself, it's a noun.

* Example: "There were thousands of people at the concert."

* Adjective: When describing a quantity, it's an adjective.

* Example: "He earned thousands of dollars in a single year."

* Pronoun: In very specific cases, it can act as a pronoun, usually with a preceding quantifier.

* Example: "They ordered thousands [of the items]."

In the sentence "Thousands of people attended the event," the word "thousands" is a noun.