The phrase "a significant widening" is correct and usable in written English.
It can be used to describe a notable increase or expansion in a particular context, such as in discussions about policies, trends, or physical spaces.
Example: "The recent data shows a significant widening of the income gap between different socioeconomic groups."
Alternatives: "a considerable expansion" or "a notable increase".
The Israeli prime minister, Binyamin Netanyahu, told a press conference the army was preparing for a "significant widening" of its offensive.
The latest arrests mark a significant widening of the Weeting operation, which had been expected to be closed down this year.
But Mr. Icahn said in a letter on Tuesday that "a number of market conditions have changed, including a significant widening of crack spreads".
The altercation marked a significant widening of the diplomatic repercussions spreading across Europe after France in July began deporting Roma to their homes in Romania and Bulgaria.
The disclosure represents a significant widening of the scandal, as victims and accusers overcome decades of reticence to step forward and denounce the former BBC host, Jimmy Savile, who was knighted by Queen Elizabeth II and had often been depicted as a national treasure.
At a time when inflation had stabilized, other indicators of imbalances showed a significant widening in many countries.
On Thursday members of the US anti-Isis alliance are to meet to discuss an offer from the Saudis and their Gulf allies to join the fight against the jihadis on the ground in Syria – a potentially significant widening of the campaign.
A wave of bedload material, manifesting as elevated bed levels and significant widening of active alluvial fills, has been triggered by large inputs of hillslope material from a few key tributary catchments following Cyclone Bola in 1988.
Significant widening and shifting toward UV region are observed for 40-h anodizing time.
The phenomenon is characterized by significant widening of single or few cracks out of the total number of cracks that develop under tension (as opposed to nearly uniform widening in plain RC members).
