The word "Rocoa" is spelled with six letters and two syllables. Its phonetic transcription in the International Phonetic Alphabet is /ˈroʊ.koʊ/. The first syllable, "ro" is pronounced with a long "o" sound, while the second syllable, "coa" is pronounced with a long "o" sound, followed by a short "a" sound. The spelling of "Rocoa" may be confusing for non-native English speakers, as it does not follow typical letter-sound correspondences. However, with practice and familiarity, one can easily pronounce and spell this word correctly.
The vegetable pulp which yields annotta.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.