In linguistics, a monosyllable is a word or utterance of only one syllable. It is most commonly studied in the fields of phonology and morphology. The word has originated from the Greek language.
"Yes", "no", "jump", "buy", "heat", "sure", "cough", and "and" are examples of monosyllables. Some of the longest monosyllabic words in the English language, all containing nine letters each, are "screeched," "schlepped," "scratched," "scrounged," "scrunched," "stretched," "straights," and "strengths".