* Adjective: Describing a quality or characteristic. Example: "The movie was too short."
* Verb: To make something shorter. Example: "Shorten the rope."
* Noun: (Informal) A short person. Example: "He was a short, but strong guy."
* Adverb: (Informal) In a short manner. Example: "He cut the rope short."
To determine the part of speech, you need to analyze how it's used in the specific sentence.