與 aboard 字形相似但字義不同的單字

以下單字字形相似，字義卻不同：

1. aboard 亦常作「副詞」用，意思相同

The ship crashed but everyone aboard was fine.

2. abroad  adv. 在國外；到國外

I plan to study abroad in Germany next year.

3. board  v. 登上船（飛機、火車等）

We can board the train at 3 p.m.

4. broad  adj. 寬的；闊的

The strong man has broad shoulders.