widen

(verb) become broader or wider or more extensive. Example: "The road widened."

(verb) make (clothes) larger. Synonyms: let out. Example: "Let out that dress--i gained a lot of weight."

(verb) make wider. Example: "Widen the road."

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