horse trading vs dialogue

horse trading and dialogue both are nouns.

Word	Noun	Adjective	Verb	Adverb
horse trading	Yes	No	No	No
dialogue	Yes	No	No	No

As nouns, dialogue is a hypernym of horse trading; that is, dialogue is a word with a broader meaning than horse trading:

horse trading: negotiation accompanied by mutual concessions and shrewd bargaining
dialogue: a discussion intended to produce an agreement

Other hypernyms of horse trading include negotiation, talks.

horse trading (noun)	dialogue (noun)
the swapping of horses (accompanied by much bargaining)	the lines spoken by characters in drama or fiction
negotiation accompanied by mutual concessions and shrewd bargaining	a conversation between two persons
	a literary composition in the form of a conversation between two people
	a discussion intended to produce an agreement