There are not many words beginning in dw in the English language: dwindle, dwarf, dwell, and dweeb. (A dweeb is an outdated insult for someone who is boring or silly.

• （这是一个在现实中不存在的单词，用来指一种因吸入细微硅石粉粒而导致的肺炎，但是这个单词主要用来给出实例，即这是英语中最长的单词。）