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"; "Extend your backyard"
throughout the entire extent; "got soaked through in the rain"; "I'm frozen through"; "a letter shot through with the writer's personality"; "knew him through and through"; "boards rotten through and through"
over the whole distance; "this bus goes through to New York"
in diameter; "this cylinder measures 15 inches through"
from beginning to end; "read this book through"
to completion; "think this through very carefully!"