promotion vs furtherance

promotion and furtherance both are nouns.

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

As nouns, promotion and furtherance are synonyms defined as:

Other synonyms of promotion include forwarding.

As nouns, promotion and furtherance are synonyms defined as:

promotion and furtherance: encouragement of the progress or growth or acceptance of something

Other synonyms of promotion include advancement.

promotion (noun)	furtherance (noun)
act of raising in rank or position	the advancement of some enterprise
the advancement of some enterprise	encouragement of the progress or growth or acceptance of something
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