The sheer weight and 'bulk' of the car makes it safe to drive. [=the car is safe because it is heavy and large]
The restaurant buys rice and flour 'in bulk'. [=it buys large bags of rice and flour]
This is a problem that 'bulks large' [='looms large'] in the minds of many people.
(..) Oh, thank you for coming, Mr. Owens. It has fallen to me to dispose of Mr. Angier's equipment. But I notice from this manifest that Lord Caldlow has purchased the bulk of the items. Mr. Cutter, if you need to know where to deliver these items... No, it's just there is one particular item, (..)2006 The Prestige