| # | Kanji | Kanji Level 4 | |||
| 581 | せき | 積 | seki | product | 1096 |
| せきさい | 積載 | sekisai | loading, carrying | ||
| せっきょく | 積極 | sekkyoku | positive, progressive | 1096 1065 | |
| せっきょくてき | 積極的 | sekkyokutekı | active, positive, proactive | ||
| つむ | 積む | tsumu | to pile up, to stack | ||
| つもる | 積もる | tsumoru | to pile up | ||
| つもり | 積もり | tsumori | an intention, a plan | ||
| ちくせき | 蓄積 | chikuseki | accumulation; accumulate; store | 1096 |