Promise news (4)
I believe the answer is:
word
I believe this is a double definition.
'promise' is the first definition.
(as in 'I give you my word')
'news' is the second definition.
('word' can be a synonym of 'news')
(Other definitions for word that I've seen before include "See 19" , "The Bible is the . . . . of God" , "Communication; news" , "News; speech element" , "Term" .)