promotion vs forwarding

promotion and forwarding both are nouns.

Word	Noun	Adjective	Verb	Adverb
promotion	Yes	No	No	No
forwarding	Yes	No	No	No

As nouns, promotion and forwarding are synonyms defined as:

Other synonyms of promotion include furtherance.

promotion (noun)	forwarding (noun)
act of raising in rank or position	the act of sending on to another destination
the advancement of some enterprise	the advancement of some enterprise
a message issued in behalf of some product or cause or idea or person or institution
encouragement of the progress or growth or acceptance of something