forwarding vs promotion

forwarding and promotion both are nouns.

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

As nouns, forwarding and promotion are synonyms defined as:

Other synonyms of forwarding include furtherance.

forwarding (noun)	promotion (noun)
the act of sending on to another destination	act of raising in rank or position
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