The idiom "the coast is clear" means that it is safe to proceed with something because there is no danger or obstacle in the way. It is often used to indicate that a situation is free from any potential problems or threats.
For example, if you are planning to sneak out of your house to go to a party, you might wait until your parents are asleep and then check to see if the coast is clear before making your escape. This means that you are making sure that there are no obstacles or dangers in your way, such as your parents waking up and catching you.
Similarly, if you are trying to cross a busy street, you might wait until there are no cars coming and then say "the coast is clear" to indicate that it is safe to cross.
Overall, "the coast is clear" is a useful idiom to use when you want to indicate that a situation is safe and free from any potential problems or threats.
• Before making any move, we need to ensure the coast is clear and there are no hidden obstacles.
• The thief waited until the coast was clear before breaking into the house.
• After checking that the coast is clear, we went into the abandoned building.
• I waited until the coast was clear before telling my boss about my plans to leave the company.
• The general waited until the coast was clear to give the order for the troops to attack.
• I can see that the coast is clear, so it's safe to cross the road now.