“Fountainhead” in Japanese
Short answer
Fountainhead in Japanese is “水源” (suigen). Full meaning: source of river, fountainhead.
Other ways to say “Fountainhead” in Japanese
河の源
kawanominamoto fountainhead
源
minamoto source (of a river), fountainhead; source, origin, root; source, origin
発源
hatsugen source (of a river), fountainhead
水げん
suigen source of river, fountainhead
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