Dialectic is a dialogue between two people who present logical arguments in order to persuade each other of the truth of their opinion; during this interchange, the debaters arrive at a truth, which often involves parts of each debater's opinion.
A dialect is a form of a standard language, such as English, that has some differences in vocabulary, grammar, and pronunciation.
desk or stand with a slanted top used to hold a text at the proper height for a lecturer
deliver a lecture or talk
a public lecturer at certain universities
Differentiated vocabulary for your students is just a click away.