English as the Second language learning recently gained attention in the field of research. The ESL (English as Second Language) learners need vocabulary enhancement and fluency for proficiency of the language which can be achieved through training. By learning and practicing a language with enhanced vocabulary will increase the vocabulary. TED (Technology, Entertainment, and Design) talks are a world’s biggest digital platform for public speaking. Vocabulary elements given in the TED talks can be defined as a lexicon of language which plays a significant role in communication. The aim of this research conveys the significant role of TED talk videos’ speaker and its influence towards its audiences. This can be achieved only by practical use of vocabulary by the ESL and EFL learners. In this research work, Persuasive and Argumentative vocabulary in the transcript of random 25 TED talk videos with time frame of 0-6mins, and sorted by ‘newest’ tab are analyzed. Also, in-depth analyses of both Persuasive and Augmentative keywords used and its frequencies are listed out from the 25 videos. This research significantly concludes that for effective communication, the learner has to be proficient in vocabulary acquisition. © BEIESP.