Reason, Discourse and Language
Solution 1:
This is a reasonable opposition, logos as reason vs logos as expression.
However, the classical Aristotelian analysis which is that rhetoric (the art of persuasion) encompasses three parts: logos or reason, ethos or credibility/author context, and pathos or emotion/values/audience perspective.
Though 'expression' seems to fit the opposition the closest (logos as concepts vs words), your description seems to point to 'rhetoric' (the expression of an idea with three parts one of which is reason).