the act of making something wider
"The gardener spent the morning broadening the path by adding more gravel to its edges."
an increase in width
"The gardener widened the path by broadening the gravel area to allow more foot traffic."
The act of becoming broader
"The garden is broadening as the new saplings stretch their branches outward toward the sun."
present participle of broaden
"The teacher spent the first week broadening our horizons by introducing us to cultures from every continent before diving into local history."