Ordinary park (6)
I believe the answer is:
common
I believe this is a double definition.
'ordinary' is the first definition.
(synonyms)
'park' is the second definition.
(synonyms)
(Other definitions for common that I've seen before include "Vulgar or frequent" , "Nous" , "Vulgar; not rare" , "General or of low degree" , "General - public" .)