engineering
In Italian, 'ingegneria' is the term used to refer to the field of engineering. It is a noun and is used in the same context as in English. For example, one might study 'ingegneria meccanica' (mechanical engineering) or 'ingegneria civile' (civil engineering).
I am very interested in engineering.
This sentence expresses personal interest in the field of engineering.
Mechanical engineering is my field of study.
This sentence is explaining that the person's area of study within the academic field is mechanical engineering.
Software engineering is becoming increasingly popular.
This sentence is commenting on the growing trend and popularity of software engineering.