What part of speech is the word cross?

The word "cross" can be several parts of speech depending on how it's used in a sentence:

Noun: A structure consisting of an upright post with a transverse beam, used especially for execution by crucifixion.

* Example: "He carried his cross with him."

Verb: To move or pass from one side to the other of (something), especially by going over or around it.

* Example: "They crossed the street."

Adjective: Having the shape of a cross.

* Example: "The cross stitch pattern."

Preposition: Across; from one side to the other of.

* Example: "The house is cross the street."

Interjection: Used to express annoyance or displeasure.

* Example: "Cross! Why did you do that?"

So, the part of speech for "cross" depends on the context of the sentence!