But the store needs to alert people that the system is in place.

Several companies are even developing systems that would effectively alert people if friends were nearby.

I wanted to alert people that the greatest player ever might retire.

We don't want to alert other people to what's going on.

"We're alerting people to the fact that you might see an increase in defaults."

I want to alert people to how tough a year it is going to be.

An alarm is something used to alert people quickly to something.

And so I alert people that this is what's going on.

So, naturally, they need to alert people and get them to fly there.

And so a number of security firms are alerting people.