| count | Keywords | count | Keywords |
| 35 | English | 11 | student |
| 31 | language | 11 | retrieval |
| 23 | academic vocabulary | 10 | academic writing |
| 23 | frequency | 9 | 2rd language |
| 21 | word list | 9 | awl |
| 15 | knowledge | 9 | acquisition |
| 15 | list | 9 | comprehension |
| 15 | vocabulary | 8 | memory |
| 14 | research article | 8 | performance |
| 14 | academic word list | 7 | word |
| 13 | lexical bundle | 7 | episodic memory |
| 13 | children | 6 | collocation list |
| 13 | learner | 6 | lexical coverage |