1. French: In French, "tous" is pronounced "too" with a short "oo" sound, similar to the "oo" in "book."
2. English (as a surname): When "Tous" is used as a surname, it's often pronounced "tows."
3. English (as a word): If "tous" is being used as a word in English, it's typically pronounced "tows" as well.
4. Specific contexts: There might be other pronunciations depending on the specific context, such as a foreign language or a particular industry jargon.
To ensure the correct pronunciation, it's best to check the context of the word. If you're unsure, it's always okay to ask for clarification.