historyoligist
Zoologist, a branch of biology or possibly ethologist (animal behavior)
I can call him a reah man
bald man
An unconciouse man.
People!
A person skilled in many crafts and studies is call a "jack of all trades". A knowledgeable artist, or scholar, may be referred to as a "Renaissance man".
A Businessman...
Laundrywoman or man.
Such a person would be a gay man. Homosexual is another term for this.
I call them a man u fan.
a gold digger
a dock man or a longshoreman