broadening (Noun) — The act of making something wider.
broadening (Noun) — The action of making broader. ex. "the broadening of travel"
broadening (Noun) — An increase in width.
broadening (Verb) — Make broader. ex. "broaden the road"
broadening (Verb) — Increase in scope, range or area. ex. "broaden your horizon"
broadening (Verb) — Vary in order to spread risk or to expand. ex. "The company broadened"
broadening (Verb) — Become broader. ex. "The road broadened"