discordance
An argument or disagreement, a failure to agree.
Verbal controversy or disagreement; altercation; debate.
to make a subject of disputation; to argue pro and con; to discuss
to strive or contend about; to contest
to oppose by argument or assertion; to controvert; to express dissent or opposition to; to call in question; to deny the truth or validity of
to contend in argument; to argue against something maintained, upheld, or claimed, by another.