Is crossing a verb or noun?

"Crossing" can be both a verb and a noun, depending on how it's used in a sentence.

Verb:

* "I am crossing the street." Here, "crossing" is the action being performed, making it a verb.

Noun:

* "The crossing was dangerous." Here, "crossing" refers to the place where you cross, making it a noun.

It's important to consider the context to determine whether "crossing" is a verb or a noun.