widen

verbs

become broader or wider or more extensive

"The road widened"

widen

is derived from

antonym

is a type of (narrower)

become bigger or greater in amount

"The amount of work increased"

make (clothes) larger

"Let out that dress--I gained a lot of weight"

let out, widen

make wider

"widen the road"

widen

is derived from

is a type of (narrower)

cause to change; make different; cause a transformation

"The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

causes

become broader or wider or more extensive

"The road widened"

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"

broaden, extend, widen