Has foundation (5)
I believe the answer is:
based
(Other definitions for based that I've seen before include "Founded or used as evidence" , "(Of aircraft) stationed" , "Located" , "Established" , "Positioned" .)
I believe the answer is:
based
(Other definitions for based that I've seen before include "Founded or used as evidence" , "(Of aircraft) stationed" , "Located" , "Established" , "Positioned" .)