en·tre·pre·neur | \ ˌäⁿn-trə-p(r)ə-ˈnər : one who organizes, manages, and assumes the risks of a business or enterprise.
syn·er·gy | \ ˈsi-nər-jē : a mutually advantageous conjunction or compatibility of distinct business participants or elements. From Merriam Webster
The old saying, “The whole is greater than the sum of its parts”, expresses the basic meaning of synergy.