Official order or proclamation (5)
I believe the answer is:
edict
I believe this is a double definition.
'official order' is the first definition.
(an edict is an order or decree)
'proclamation' is the second definition.
(I know that edict is a type of proclamation)
'or' is the link.
(Other definitions for edict that I've seen before include "Decree, fiat" , "Injunction" , "Legally binding proclamation" , "Proclamation, law" , "Declaration" .)