I think there is value is amending the lesson to emphasize that sometimes means or or often based on the context. 

For example:  - at any moment; à tout prix - at any price; à tout propos - at any given opportunity; à tout venant - to anyone and everyone; de tout âge - at any age; en tout cas - in any case; en tout état de cause - in any case, in any event; si je le laisse seul, tout peut arriver - If I leave him alone, anything can happen;