But economists said the recession would have to deepen significantly, and perhaps drag on for years, before deflation became a genuine threat.

Asking questions about objects, classifying them and deriving information from close observation can significantly deepen understanding.

The storm deepened significantly further, peaking with winds of 125 mph (205 km/h) on September 9.

The water level is generally waist high on the inside, but towards the inlet, it deepens significantly.

Repeated floods in the middle 14th century significantly deepened the Salt River bed while destroying canal heads, which required their continuous extension upstream.

The project significantly deepened and widened the brook through the construction of concrete and rock-lined channels.

Elton John is notable for having vocal surgery, as it caused his voice to significantly deepen.

Mr. Spratt said the size of the budget proposal would significantly deepen the federal deficit for more than a decade.

The snow would accumulate as the day wore on and deepen significantly during the night.

The storm deepened significantly over the next 24 hours and became a Category 2 hurricane.