transaction vs dealing

transaction and dealing both are nouns.

Word	Noun	Adjective	Verb	Adverb
transaction	Yes	No	No	No
dealing	Yes	No	No	No

As nouns, transaction and dealing are synonyms defined as:

transaction and dealing: the act of transacting within or between groups (as carrying on commercial activities)

Other synonyms of transaction include dealings.

transaction (noun)	dealing (noun)
the act of transacting within or between groups (as carrying on commercial activities)	method or manner of conduct in relation to others
	the act of transacting within or between groups (as carrying on commercial activities)