1. Na (n-ah): The first syllable is pronounced like the English word "nah".
2. Wal (w-ah-l): The second syllable is pronounced like "wah" in the word "wah-wah".
3. El (e-l): The third syllable is pronounced like the English word "el".
4. Saad (s-a-ah-d): The fourth syllable is pronounced like "sah" in the word "sah-ara".
5. Wi (w-ee): The fifth syllable is pronounced like "wee" in the word "wee-wee".
Putting it all together, the full name is pronounced as "Na-wal el-Saa-da-wee".