make larger, of clothes; "Let out that dress--I gained a lot of weight"
become broader or wider or more extensive; "The road widened"
make wider: "widen the road"
extend in scope or range or area; "The law was extended to all citizens"; "widen the range of applications"; "broaden your horizon"
make wider; "widen the road"
make (clothes) larger; "Let out that dress--I gained a lot of weight"
extend in scope or range or area; "The law was extended to all citizens"; "widen the range of applications"; "broaden your horizon"; "Extend your backyard"