外がい注ちゅう先さきMeaningsNoun1. subcontractor; outsourceeKanji used外outside注pour先before (timewise)Composed of外がい注ちゅうoutsourcing; contracting out; ordering with an outside supplierNoun先さきpoint; tip; end; nozzle; head (of a line); front; first; before; ahead (of); (the way) ahead; …Noun