"work sth up" in German to work sth. up etw. ausbauen etw. erweitern entwickeln Detailed translations for "work sth up" to work sth. up 1. into sth. to work sth. up(also: to develop sth.) etw. ausbauen to work sth. up etw. erweitern{transitive verb} 2. psychology to work sth. up(also: to work onself up into sth.) entwickeln{transitive verb}