Accentuate: Accentuating means emphasizing or bringing greater attention to something specific. Within the context of emphasizing arguments through modification, accentuating involves making certain elements more prominent or noticeable.
Reinforce: Reinforcing refers to strengthening or supporting something. When applied to emphasis in arguments, reinforcing entails using words, phrases, and clauses to bolster key points and make them more convincing.
Intensify: Intensifying means increasing the strength or force of something. In relation to emphasizing an argument through modification, intensifying involves adding power and impact to specific aspects within the argument.