英検ライティングの採点基準「語彙（Vocabulary）」は、適切で多様な表現を使っているかが問われます。同じ単語の繰り返しは減点、ワンランク上の表現を使えば加点。つまり言い換え表現を覚えるだけで、確実にスコアアップできます。
| NG / 基本 | 言い換え表現 | 級 |
|---|
| good | great, nice, wonderful | 3級 |
| good | beneficial, valuable, effective | 2級 |
| good | advantageous, favorable, constructive | 準1級 |
| bad | not good, terrible | 3級 |
| bad | harmful, negative, problematic | 2級 |
| bad | detrimental, adverse, counterproductive | 準1級 |
| important | very useful, necessary | 3級 |
| important | essential, crucial, significant | 2級 |
| important | indispensable, paramount, vital | 準1級 |
| interesting | fun, exciting | 3級 |
| interesting | fascinating, engaging, compelling | 2級 |
| big | large, huge | 3級 |
| big | significant, substantial, considerable | 2級 |
| many | a lot of, lots of | 3級 |
| many | numerous, a large number of | 2級 |
| many | a multitude of, a vast number of | 準1級 |
| very | really, so | 3級 |
| very | extremely, highly, remarkably | 2級 |
| hard / difficult | not easy | 3級 |
| hard / difficult | challenging, demanding | 2級 |
| easy | simple, not difficult | 3級 |
| easy | convenient, accessible, straightforward | 2級 |
| cheap | affordable, inexpensive, cost-effective | 2級 |
| expensive | costly, pricey, overpriced | 2級 |
| fast / quick | rapid, swift, prompt | 2級 |
| new | modern, innovative, cutting-edge | 2級 |
| old | traditional, outdated, conventional | 2級 |
| NG / 基本 | 言い換え表現 | 級 |
|---|
| like | enjoy, love | 3級 |
| like | prefer, appreciate, be fond of | 2級 |
| think | believe, feel | 3級 |
| think | consider, argue, maintain | 2級 |
| think | contend, assert, be convinced that | 準1級 |
| help | support, assist, contribute to | 2級 |
| help | facilitate, enable, foster | 準1級 |
| use | utilize, make use of, employ | 2級 |
| get | obtain, acquire, gain | 2級 |
| make | create, produce, develop | 2級 |
| change | transform, modify, alter | 2級 |
| need | require, demand, necessitate | 2級 |
| show | demonstrate, illustrate, indicate | 2級 |
| increase | grow, rise, expand, surge | 2級 |
| decrease | decline, diminish, reduce | 2級 |
| stop | prevent, prohibit, cease | 2級 |
| start | begin, launch, initiate, commence | 2級 |
| cause | lead to, result in, bring about | 2級 |
| affect | influence, impact, have an effect on | 2級 |
| solve | address, tackle, overcome | 準1級 |
| NG / 基本 | 言い換え表現 | 級 |
|---|
| And | Also, / And also, | 3級 |
| And | In addition, / Furthermore, / Moreover, | 2級 |
| But | However, | 3級 |
| But | Nevertheless, / On the other hand, / In contrast, | 2級 |
| But | Notwithstanding, / Despite this, / Conversely, | 準1級 |
| So | That is why | 3級 |
| So | Therefore, / As a result, / Consequently, | 2級 |
| Because | since, as | 3級 |
| Because | due to the fact that / owing to / on account of | 2級 |
| For example | For instance, / Such as / A case in point is | 2級 |
| For example | This is exemplified by / To illustrate, | 準1級 |