Table 1: The results of the analysis by text mining, the headwords contained in songs performed by AKB48.
| Rank | Frequently Appearing Word | Frequency(No. of English Japanese Songs) |
| English | Japanese |
| 1st | Dream | Yume | 126 |
| 2nd | I (woman) | Watashi | 119 |
| 3rd | Love(formal) | Ai | 112 |
| 4th | Heart | Kokoro | 101 |
| 5th | Inside | Naka | 91 |
| 6th | You (formal) | Anata | 91 |
| 7th | I (man) | Boku | 85 |
| 8th | Wind: | Kaze | 83 |
| 9th | Sky | Sora | 80 |
| 10th | You(informal) | Kimi | 78 |
| 11th | Myself | Jibun | 78 |
| 12th | Love(informal) | Koi | 69 |
| 13th | Future | Mirai | 68 |
| 14th | Road | Michi | 61 |
| 15th | Hand | Te | 56 |