For example, for the root ‫رج‬ ‫:خ‬ xrj, we can apply different patterns which give different lemmas with different meanings: ‫َج‬ ‫ر‬ ْ ‫خ‬ َ ‫أ‬ / to eject 3-Lemma: The lemma is a fundamental concept in the processing of texts in at least some languages.
we can distinguish in the same speech, MSA words, TD words and MSA-TD words such as a word with an MSA component (root) and dialectal affixes.