“…This is due to the fact that vocabulary plays a major role in concept formation, acculturation, articulation, and all aspects of learning (Gerstenberg, 2015). Studies on vocabulary knowledge have often been focusing on the pedagogical aspects such as vocabulary learning strategies (e.g., Asgari & Mustapha, 2011;Kulikova, 2015), incidental vocabulary acquisition in extensive reading (e.g., Ghanbari & Marzban, 2014;Webb & Chang, 2014), and vocabulary acquisition in several conditions (e.g., Sadeghi, Ellis & Khezrlou, 2017;Teng, 2016). Researchers (e.g., Joyse, 2015, Kaur, 2013Ng & Sappathy 2011) have also established the importance of vocabulary knowledge, not only in the first language (henceforth, L1) but also in the second language (henceforth, L2).…”