Dictionary/ソースSoosuJLPT N1ソース (Soosu) is a Japanese noun meaning “sauce, Worcestershire sauce”.MeaningsnounsaucenounWorcestershire sauceExamplesソースを別にください。I'd like the sauce on the side.このソース試してみて。Try this sauce.空腹は最善のソースなり。Hunger is the best sauce.Sentences from Tatoeba (CC BY 2.0 FR).