| 2194 | inadequate |
| 1896 | incentive |
| 2091 | inch |
| 1627 | incident |
| 2817 | incline |
| 6 | include |
| 1088 | income |
| 2647 | incomplete |
| 1411 | incorporate |
| 2609 | incorrect |
| 116 | increase |
| 894 | increasingly |
| 2891 | incredible |
| 118 | industry |
| 251 | individual |
| 442 | industrial |
| 512 | indeed |
| 679 | indicate |
| 682 | independent |
| 1472 | induce |
| 1611 | index |
| 2566 | independence |
| 2648 | indirect |
| 3208 | indifferent |
| 3259 | indispensable |
| 2761 | inertia |
| 2003 | inevitable |
| 120 | information |
| 535 | infect |
| 574 | influence |
| 717 | infrared |
| 1303 | infant |
| 1646 | inform |
| 2014 | inflation |
| 2138 | infinite |
| 2971 | inferior |
| 1696 | ingredient |
| 2688 | inhabit |
| 1850 | inherit |
| 1942 | inhibit |
| 1227 | initial |
| 1430 | initially |
| 2598 | initiate |
| 1276 | initiative |
| 1049 | inject |
| 1915 | injection |
| 2594 | injure |
| 1563 | injury |
| 1196 | inner |
| 2743 | innocent |
| 1347 | innovation |
| 1431 | input |
| 1529 | inquiry |
