The longest one-syllable words in the English language are "scraunched" and "strengthed."

英语中最长的单音节词是“scraunched”和“strengthed”。

youdao

It concludes that two-syllable words are primary and no one-syllable words appear, and the syllabic length is between1 and12 syllables.

结论是：以双音节词为主导，单音词零增长，词长的极限是1 - 12个音节。

youdao

Could you say that again in words of one syllable?

你能用很简单的言语把这再说一遍吗？

《牛津词典》

Aside from one-syllable takes on the name Joseph, Guardiola and Heynckes don't have much in common, at least on the surface.

WSJ: Bayern Munich's Tough Manager Call

Most are short, one-syllable nicknames that are quite common.

FORBES: Is Your Name Keeping You From The Top Job?

Finally, note that there are just 14 words in the revised sentence, compared with 19 in the original, and that nine of them are one-syllable, three are two-syllable and two are three-syllable.

WSJ: Word Craft: Ben Yagoda on Not Writing Badly