Noun: This is the most common usage, referring to a person who is skilled in a particular art, craft, or profession.
Example: "He is a master carpenter."
Verb: This refers to becoming proficient in something.
Example: "She mastered the art of origami."
Adjective: This describes something that is superior or excellent.
Example: "The chef created a master dish."
Interjection: This is a rare usage, but "master" can be used as an exclamation of surprise or amazement.
Example: "Master! You did it!"
To determine the correct part of speech, you need to analyze the sentence and consider the word's function within the context.