If it is a terrorist threatening people, then it is a person. If it is a bomb, then it is a thing. If you are lost, then it is a place.
The word "terrorize" is a verb. The noun form "terrorist" (person) or "terror" (thing) are only a proper nouns when used for the name of a specific person, place, thing, or a title such as the book 'Terror and Consent: The Wars for the Twenty-First Century' by Phillip Bobbitt.
A proper noun is the name or title of a specific person, place, or thing; for example:Queen Elizabeth II (person)Qatar (place)Qantas airline (thing)"Quo Vadis" a novel by Henryk Sienkiewicz (title)
airline gives us the facility to move from one place to another
a person and a thing
A memorial is a place that honors a person, event, or thing.
thing
A noun is a word that represents a person, place, thing, or idea.
Yes. (person, place or thing & it IS a thing)
Place
A namesake is when a person, place, or thing is named after another person, place, or thing.
Sunscreen is a noun, it is a thing, not a person or place. A noun is a person, place or thing.
The word "week" is a concept or unit of time, not a person, place, or thing.