broaden

(verb) make broader. Example: "Broaden the road."

(verb) extend in scope or range or area. Synonyms: widen, extend. Examples: "The law was extended to all citizens." "Widen the range of applications." "Broaden your horizon." "Extend your backyard."

(verb) vary in order to spread risk or to expand. Synonyms: diversify, branch out. Example: "The company diversified."

(verb) become broader. Example: "The road broadened."