'On the Alert' Meaning and Sample Sentences

The idiom "on the alert" means to be vigilant and ready for action, particularly in anticipation of potential danger or trouble. It is often used in the context of military or security situations.

As an idiom, "on the alert" is a phrase and not a single word, so it does not have a specific part of speech.

The origin of the phrase "on the alert" is believed to be from the military, where it was used to describe soldiers or guards who were actively watching and ready to respond to any potential threats.

"On the alert" is commonly used in situations where one needs to be ready to respond to an event that might happen, such as security or military operations, or in situations where one needs to be aware of potential dangers or problems.

It is also used in a more general sense to describe someone who is always ready to take action or respond to a situation.

Here are ten examples of sentences using the idiom "on the alert":

1. The coast guard was on the alert for any signs of a ship in distress.
2. The police were on the alert for suspicious activity in the park.
3. The security guard was on the alert for anyone trying to enter the building without proper identification.
4. The city was on the alert for a potential terrorist attack.
5. The business owner was on the alert for any signs of fraud in their financial records.
6. The parents were on the alert for any signs of illness in their child.
7. The doctor was on the alert for any complications during the surgery.
8. The stock market was on the alert for any sudden changes in the economy.
9. The residents were on the alert for any signs of a gas leak in their building.
10. The fire department was on the alert for any signs of smoke or fire in the neighborhood.