There are also frequent and ominous references to clocks and to time.

Mr. Nicosia said that was an ominous reference to the recent shooting of a teacher in Arkansas.

Currently, a spate of sun-care products are being advertised with ominous references to skin cancer.

Carlos Alfonzo's paintings also look like abstractions at first, although after a while ominous references to eyes and knives emerge from the designs.

When he concludes, it is with an ominous reference to central planning.

They are attempting to thwart sales of Japanese products through commercials that feature ominous references to Japanese culture.

She remembered the tour guide's ominous references to the rats who called the Underground City home.

But the prosecutors' filing is filled with ominous references to other potential defendants in the government's investigation.

There were occasionally ominous references to his race's plans to take over the earth.

There are several ominous references to Edward Teach, aka Blackbeard.