How to Use “In Case” Correctly | English Grammar Tip Many English learners confuse "in case" with "if", but they’re not the same! “In case” means as a precaution or to be prepared for something that might happen. Examples: 1. Take an umbrella in case it rains. (= Maybe it will rain, so you take the umbrella to be safe.) 2. I’ll save your number in case I lose my phone. (= You might lose your phone, so you save the number beforehand.) 3. Bring water in case you get thirsty. (= You might get thirs