to le
Here's a breakdown:
* "Tout" is pronounced like "too"
* "Le" is pronounced like "luh"
When combined, the "t" at the end of "tout" is silent, making the pronunciation flow smoothly into the "le".
It's important to note that the pronunciation of "tout le" can vary slightly depending on the following word. For example, if the following word starts with a vowel sound, the "e" in "le" might be pronounced more clearly.