How Do You Spell ONOMASTICONS?
Pronunciation: [ˈɒnəmˌastɪkənz] (IPA) 
Onomasticons is a plural noun referring to a collection of name books. The pronunciation of this word is [ah-nuh-mas-ti-kons]. The first syllable "on" is pronounced like "ah-n" and the second syllable has the stress on the "mas". The "ti" in the third syllable is pronounced like "sh". The final syllable "cons" is pronounced like "kons". The spelling of Onomasticons can be tricky due to the unusual combination of letters, but remembering the phonetic transcription can help with proper spelling and pronunciation.
