* Noun: A plant or plant product that is grown in large quantities, especially for food. *Example: "The farmer harvested a bountiful crop of wheat."
* Verb: To cut or gather a crop. *Example: "The workers are busy cropping the fields."
* Verb: To cut or shorten something. *Example: "Please crop the photo to remove the extra space."
So, to determine the part of speech, you need to look at how the word is used in the sentence.