■ noun
1》 a savoury liquid dish made by boiling meat, fish, or vegetables in stock or water.
2》 informal the chemicals in which film is developed.
3》 US informal nitroglycerine or gelignite, especially as used for safe-breaking.
■ verb ( ~ something up ) [often as adjective ~ed-up ] informal increase the power and efficiency of an engine.
↘make something more elaborate or impressive.
Phrases
in the ~ informal in trouble.
Origin
ME: from OFr. ~e 'sop, broth (poured on slices of bread)', from late L. suppa , of Gmc origin; the verb was perh. influenced by super- .