The word "rheaume" is a French Canadian surname that is pronounced as /reɪm/. The spelling of the word is based on the French spelling conventions, which often have silent letters. In this case, the silent letters are the "h" and the final "e". The IPA phonetic transcription of the word indicates that the stress is on the first syllable, and the sound of the "a" is long. The pronunciation of this surname may vary depending on regional accents and dialects.