English Vocabulary List for Grade 10 Thai Students


  • Monsinee Namchan


English vocabulary list, Grade 10 Thai students, high-frequency words, New General Service List


There is no availability of English vocabulary list for Grade 10 students in Thailand. This study, therefore, aimed: 1) to clarify English vocabulary expectation of Grade 10 defined in the Basic Education Core Curriculum B.E. 2551 (A.D. 2008) and 2) to create an English vocabulary list for Grade 10 students. Five steps adopted in obtaining the list were: 1) clarifying the vocabulary expectation of Grade 10, 2) gathering running words from three samples of English course texts of Grade 10, 3) identifying the total running words with New General Service List (NGSL) through AntWordProfiler for the first list, 4) validating the first list by three English experts of Grade 10 to confirm the appropriateness of words and ranks and 5) creating the final list. From analyzing of 89,288 running words, it was revealed that 2,023 word families were found in three sample texts and only 1,123 word families obtained at least six repetitions, although Grade 10 expectation is 2,600-2,750 words. The remaining words of NGSL and words with lower than six repetitions, therefore, were validated by experts and added to the list in order to meet the expectation. Implications of the 2,780 words of Grade 10 vocabulary can be made for use in pedagogy and research.


Anthony, L. (2013). AntWordProfiler (Version 1.4.0w) [Computer Software]. Retrieved from http://www.laurenceanthony.net/software

Browne, C., Culligan, B. & Phillips, J. (2013). The New General Service List: Celebrating 60 years of vocabulary learning. JALT’s The Language Teacher, 37(4), 13-16.

Chawwang, N. (2008). An Investigation of English Reading Problems of Thai 12th Grade Students in Nakhonratchasima Educational Regions 1,2,3 and 7. Master of Arts Thesis, Department of Arts, Graduate School, Srinakharinwirot University.

Coxhead, A. (2000). A New Academic Word List. TESOL Quarterly, 34, 213-238.

English Language Institute. (2016). English Vocabulary Core List for Primary Education Levels. Retrieved from www.mukdahan.org/news_file/p75850761016.pdf

Evans, V. & Dooley, J. (2013). Upstream 4. Bangkok: Aksorn Education.

Gardner, D. (2008). Vocabulary recycling in Children children’s authentic reading materials: A courpus-based investigation of narrow reading. Reading in a Foreign Language, 20, 1-34.

Goldstein, B., Jones, C. & Heyderman, E. (2016). Eyes Open Student’s Book 1. Bangkok: Institute of Academic Development.

He, L. & Seepho, S. (2010). A Corpus-Based Vocabulary Selection for Grades 1-3 Thai EFL Learners. Suranaree Journal Social Science, 4(2), 49-66.

Hu, M. & Nation, P. (2000). Unknown Vocabulary Density and Reading Comprehension. Reading in a Foreign Language, 13(1), 403-430.

Laufer, B. (1992). How Much Lexis is Necessary for Reading Comprehension? In H. Bejoint & P. Arnaud (Eds.), Vocabulary and Applied Linguistics (pp. 126-132). London: MacMillan.

Ministry of Education. (2008). The Basic Education Core Curriculum B.E. 2551 (A.D. 2008). Bangkok: Express Transportation Organization of Thailand.

Nation, P. (2001). Learning Vocabulary in Another Language. Cambridge: Cambridge University Press.

Nation, P. (2005). Teaching Vocabulary. Asian EFL Journal, 7(3), 47-57.

Nation, P. (2012). The BNC/COCA Word Family Lists. Retrieved from https://www.victoria.ac.nz/lals/about/staff/publications/paul-nation/Information-on-the-BNC_COCA-word-family-lists.pdf

National Institute of Educational Testing Service. (2012). English Vocabulary of Grade 6, 9 and 12. Retrieved from www.niets.or.th/th/catalog/view/497/40

National Institute of Educational Testing Service. (2016). O-NET Summary Score of Grade 12 in the Academic Year 2015. Retrieved from www.newonetresult.niets.or.th/AnnouncementWeb/PDF/SummaryONETM6_2558.pdf

National Institute of Educational Testing Service. (2017). O-NET Summary Score of Grade 12 in the Academic Year 2016. Retrieved from www.newonetresult.niets.or.th/AnnouncementWeb/PDF/SummaryONETM6_2559.pdf

Ngamphong, P. (2014). English Core Vocabulary for Thai Students in First, Second and Third Grades. SDU Research Journal, 10(1), 239-254.

Ngiwline, P., Wongsothorn, A. & Anugkakul, G. (2015). Core English Word List For Grades 7-9 Thai Students. SSRU Graduate Studies Journal, 2(2), 282-297.

Santos, M. (2015). New World 4. Bangkok: Thai Watana Panich.

Staehr, L. S. (2008). Vocabulary Size and the Skills of Listening, Reading and Writing. Language Learning Journal, 36(2), 139-152.

Supratranont, P. (2005). Classroom Concordancing: Increasing Vocabulary Size for Academic Reading. In D. E. Shaffer and J. Kimball (Eds.), Trends & Challenges: Proceedings of the 13th Annual KOTESOL International Conference (pp. 35-44). Korea: Seoul.

Suwadit, N. & Wongsothorn, A. (2015). English Core Word List for Grade 4-6 Thai Students. HRD Journal, 6(2), 94-103.

Treffers-Daller, J. & Milton, J. (2013). Vocabulary Size Revisited: The link between vocabulary size and academic achievement. Applied Linguistics Review, 4(1), 151-172.

West, M. (1953). A General Service List of English Words. London: Green & Co.

Wilkins, D.A. (1972). Linguistics in Language Teaching. Australia: Edward Arnold.






Research articles