say it: MAHRSH-mel-oh
marshmallow is a noun meaning "spongy confection made of gelatin and sugar and corn syrup and dusted with powdered sugar". It is pronounced /ˈmɑɹʃˌmɛloʊ/ — MAHRSH-mel-oh. It carries one recorded sense.
spongy confection made of gelatin and sugar and corn syrup and dusted with powdered sugar
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for marshmallow come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.