IPA: /ˌmɒnəˈsɪləbɪk/
KK: /mɑnəˈsɪləbɪk/
Describing a word or expression that has only one syllable.
The word 'cat' is monosyllabic because it has just one syllable.
Monosyllabic → It is formed from "mono-" (from Greek "monos", meaning single or one) and "syllabic" (from Greek "syllabē", meaning syllable). The word describes a word that consists of a single syllable.
Think of 'mono-' meaning 'one' and 'syllabic' relating to 'syllable' — so monosyllabic refers to a word that has just one syllable.