In addition, promote (7)
I believe the answer is:
further
I believe this is a double definition.
'in addition' is the first definition.
(synonyms)
'promote' is the second definition.
(I know that further is a more specific form of the action promote)
(Other definitions for further that I've seen before include "To somewhere more advanced" , "Beyond; also" , "Moreover" , "In addition, also" , "To, or at, a greater extent, degree, or a more advanced stage" .)