0 past simple and past participle of widen
1 to become, or to make something greater in width:
As it approaches the sea, the river begins to widen (out).
2 to (cause something to) become larger or to include a larger amount or number:
He is having an operation to widen the space in his arteries.
The valley widens here.
A more extensive investigation would have widened the scope, but is unlikely to have altered the results in any significant way.
Its scope was widened to include an unquestioned dominion over the essences of created things.
After 1924, wage earner cases exceeded business cases in each year, and the gap widened as the rate of wage earner bankruptcy increased.
The dispersion of total income widened over the eight years, especially among women.
A question, for example, can be signaled by raised eyebrows, widened eyes, and a slight leaning forward of the head.
