broadening vs widening

broadening and widening both are nouns.

Word	Noun	Adjective	Verb	Adverb
broadening	Yes	No	No	No
widening	Yes	No	No	No

As nouns, broadening and widening are synonyms defined as:

As nouns, broadening and widening are synonyms defined as:

broadening (noun)	widening (noun)
the action of making broader	the act of making something wider
the act of making something wider	a part of a road that has been widened to allow cars to pass or park
an increase in width	an increase in width