Tawriyah depends on a word possessing a readily suggested near meaning and a more remote intended meaning. Tawjīh makes room for two opposing or differently valued readings of an utterance, such as praise and blame.
لَيْتَ عَيْنَيْهِ سَوَاءٌ
Would that his two eyes were alike.
Depending on context, this may mean wishing that the good eye were as defective as the bad or that the bad eye were as sound as the good. The two opposite implications are the rhetorical focus. To establish tawriyah, by contrast, one must isolate a word's two senses and show which is the intended remote one.