What part of speech is the word alongside?

"Alongside" can be two different parts of speech depending on how it's used:

* Preposition: When "alongside" indicates location or position relative to something else.

* Example: "The car parked alongside the curb."

* Adverb: When "alongside" modifies a verb and means "at the same time" or "in addition to."

* Example: "The company launched a new product alongside a marketing campaign."

To determine the correct part of speech, you need to analyze its function in the sentence.