WARNING

What is Warning ?
-A warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger. Its purpose is to enable the deployer of the warning system to prepare for the danger and act accordingly to mitigate or avoid it.

Study this dialog. Pay close attention to the underlined expression!
Wina                : “Mom, let me go out for a while, please?”
Mother             : “Where are you going to, Win?”
Wina                : “I’d like to visit Ririn. She got accident this morning. She is in the hospital now.”
Mother             : “Okay, but take care when you drive! The road is very slippery.”
Wina                : “Thank you, Mom.”

Note
If we want to warn someone, we may have the following expressions:
Watch out!
Look out!
Be careful!
Take care when you drive!
Whatever you do, do it carefully.
These tablets should be kept out of the reach of the children.
Read the instruction attentively
Keep of the carpet. It has just been cleaned.
Beware!