This is a call for a more universally agreed on definition of entrepreneurship, startup and small business.
My proposal is simple:
Startup – a new business of any kind (big, small, or entrepeurial)
Entrepreneurship – the study of “novel” businesses which has the opportunity to “grow big”
Entrepreneur – a person who has founded or cofounded a “novel” startup which could or did “grow big”.
Small Business – a private non-novel business, with a known risk/reward profile based on prior businesses of that type.