I knew this would be a certain and powerful sign for him.

"We live our lives paying attention to certain signs, a metaphysical side of life."

It is the certain sign of near success, the view-halloo.

They had been doing this for three million years, and were showing certain signs of strain.

They are letting people back into car park, which is an almost certain sign that he's left.

Knowing my own truth makes it easier for me to recognize certain signs in others.

This was a certain sign of a change in weather.

Let us remember that certain positive social signs have appeared there.

"There were certain signs that something was just not right."

Yet we learned the meaning of certain signs and noises.