What is the longest one-syllable word in English?

The longest one-syllable word in English is “screeched.”

📜 History: “Screeched” comes from Middle English “scrichen,” meaning “to make a harsh sound.” It’s related to the word “scream”, which has the same root.

🤔 Trivia: Other long one-syllable words include “strengths,” “stretched,” and “scratched.”