a person whos addicted to material things and whos stupid and is taciturn.
The host or hostess.
An orphan.
You would call them a "person" or better yet, call them by their name.
a biologist is a person whos very good at biology of the science subjectsI DONT KNOW
a person whos name is chris
Eli Musk
Contract Analyst
carlos slim whos is a Mexican
Adam and Steve.
a great person whos destined to be popular
a person whos famus like mb