* Noun: This is the most common usage, referring to the basic unit of life.
* Example: "The scientist studied the structure of a cell under a microscope."
* Verb: Less common, it means to divide into smaller compartments.
* Example: "The prison was celled into individual units."
* Adjective: Describing something that is like a cell.
* Example: "The company has a cell structure, with small, independent teams."
To determine the part of speech, you need to look at the context of the sentence.