The best replacement for argument is persuasion.

The best alternatives to argument are rated as following:
★★★★★  persuasion
★★★★  parameter
★★★  debate
★★  explanation
★★  claim
★  arguement
★  non argument
★  discussion
★  invalid argument
★  statement
★  valid argument
★  parameter java
★  adjunct
★  disagreement
★  opinion
★  contradiction
★  sound argument
★  assertion
  dispute
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  analysis
  parameter python
  persuasive writing
  unsound argument
  conversation
  persuasive
  traditional argument
  inductive argument
  inductive reasoning
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  negotiation
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  premise
  verbal abuse
  arguing

Your alternative for argument is not listed? Suggest!
Speaking about argument, one probably shouldn't forget about fallacy.

Other search terms related to argument and their ratings are:
★★★★★ fallacy
★★★★ premise
★★ option
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