The engine suddenly 'roared (back) to life'. [=it made the loud sound of an engine and began running well]
The audience 'roared' with laughter. [=the audience laughed loudly for a long time]
The fans were 'roaring' [=yelling and cheering loudly] after their team scored.
(..) - Do they know that? They will. It's time they had their supper. ( growling ) ( chains rattling ) ( roars ) ( roars ) I'm friends with your mother. ( roaring ) I'm here to help. Don't eat the help. (..)2016 TvShow: Game of Thrones Title: Home Season: 6 Episode 2