The increase in those sexually transmitted diseases may signal that public health campaigns urging condom use are beginning to lose their resonance.

Any increase in the speed with which Harriet wielded it would signal the building of her rage.

Wedderkind didn't say anything, but a sharp increase in his blink rate signalled a direct hit.

Traders say the sharp increase may signal a new maturity in the market.

The increase in population, coupled with a growing wealth, may signal political and social change.

An increase in orders can signal gains in both production and jobs.

Therefore a rapid increase of home prices combined with a flat renting market can signal the onset of a bubble.

An increase in baseline airway pressure can signal malfunction of the exhalation valve.

Conversely, a larger increase of, say, three-quarters a percentage point might signal to markets that the Fed was finished raising interest rates for the year.

The 9% increase in real GDP for 1995, the first postwar year, signaled the resurgence of economic activity.