* Noun: This is the most common usage. It refers to the profession or discipline of engineering.
* Example: "She studied engineering at MIT."
* Adjective: It can describe something related to engineering.
* Example: "They used engineering principles to design the bridge."
* Verb: It can describe the act of creating or building something using engineering principles.
* Example: "The team engineered a new solution to the problem."
To determine the part of speech, look at how it's used in the sentence.