The purpose of this research was to analyze the vocabulary barriers experienced by learners of public sector universities and colleges situated in South Punjab. SPSS version 23 was used to check the frequency and percentage of the responses of the respondents. The bulk of the learners indicated that they fail to achieve sufficient vocabulary to satisfy their educational and social needs due to certain factors such as the scope and magnitude of the assignments given to the students meaning the number of words that L2 learners need to learn is extraordinarily large. Similarly, the difference between spoken and written English becomes challenging on the way of learning L2 properly. To overcome all these barriers, the role of English language teachers is vulnerable as he is regarded as the custodian of L2 classroom, especially in EC and OC Circle countries and Pakistan is included in OC Circle countries.