| Level 2 vocabulary |
| 加減 | (n) (1) addition and subtraction/ (2) allowance for/ (3) degree/ extent/ measure/ (4) condition/ state of |  |
| 増減 | (n,vs) increase and decrease/ fluctuation/ (P) |  |
| 減らす | (v5s,vt) to abate/ to decrease/ to diminish/ to shorten/ (P) |  |
| 減る | (v5r,vi) to decrease (in size or number)/ to diminish/ to abate/ (P) |  |
| Level 1 vocabulary |
| いい加減 | (adj-na,adv,exp,n) moderate/ right/ random/ not thorough/ vague/ irresponsible/ halfhearted/ (P) |  |
| 軽減 | (n,vs) abatement |  |
| 減少 | (n) decrease/ reduction/ decline/ (P) |  |
| 減点 | (n,vs) subtract/ give a demerit/ (P) |  |
| 削減 | (n,vs) cut/ reduction/ curtailment/ (P) |  |