源|みなもとminamoto[0]heiban (flat)

1. nounsource (of a river); fountainhead
2. nounsource; origin; root

• Synonym源流げんりゅうWrittenWritten word for the source of a river, and by extension the wellspring of a culture or body of thought; 「源」 is the more concise choice.
• Synonym水源すいげんNeutralLimited to water: the source of a river or of the water supply, as in 「水源地」. It cannot stand in for 「源」 for origins in general.
• SynonymルーツCasualColloquial loanword for roots or ancestry, as in 「日本語のルーツ」.
• Synonym発祥はっしょうWrittenWritten word for where a culture or practice first arose, as in 「発祥の地」.
• Synonym出所しゅっしょWrittenSame word as above: 「出所」 is simply another way of writing 「出どころ」, with the same meaning — where news, money and the like come from.
• Synonym起源きげんNeutralThe standard word for the origin of something, as in 「生命の起源」; leans academic.
• Synonym本元ほんもとWrittenWritten. The true origin of a thing, or the main line of a family; 「本家本元」 stresses that something is the genuine article.
• Synonym起こりおこりNeutralThe cause or beginning of something, as in 「事の起こり」.
• Related根源こんげんWrittenWritten. The root or underlying cause of something, as in 「悪の根源」; more abstract than 「源」.
• RelatedはじめNeutralThe everyday word for the beginning or start of something, with an emphasis on order in time; very common in speech.
• Related始まりはじまりNeutralCommon in speech. Names the start or origin of something, focusing on the moment it begins.
• Related発端ほったんWrittenWritten. The outset or first trigger of an event, as in 「事件の発端」.
• Related幕開けまくあけWrittenWritten. The opening of a new era, as if a curtain rising; stresses the start itself rather than the source.
• Related糸口いとぐちWrittenWritten. A clue or lead for solving a problem, as in 「解決の糸口」 — the first thread to pull, not the origin.
• Related起点きてんNeutralA starting point, stressing position: the point where a route or course begins, for example.
• Related出どころでどころCasualColloquial word for where something comes from — news, money and the like; common in speech.
• Related濫觴らんしょうFormalFormal written language for the origin of a thing; rare in modern usage.
• RelatedオリジンCasualLoanword for origin or provenance; rare in daily conversation, seen mostly in titles and headings.
• Related開闢かいびゃくFormalFormal and old-fashioned: the creation of the world, as in 「開闢以来」.
• Related淵源えんげんFormalFormal written word for origins or roots; academic in flavor and more solemn than 「源」.
• Antonym末すえWrittenWritten antonym: the far end or tip of something, as in 「川の末」 — the opposite end from the source.
• Antonym終わりおわりNeutralNeutral antonym: the end of something in time; where things finish rather than where they come from.

Default to 「源」 for the source of a river or of power and vitality, as in 「活力の源」. Reach for 「源流」 for the wellspring of a culture or tradition, 「根源」 for root causes, 「起源」 for origins treated academically, 「発祥」 for where a culture or practice first arose, and 「出どころ」 for where news or money comes from. For the opposite end, 「末」 names the far end of a river or object.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. （みなもと）川かわの水みずの流れ出ながれでる所ところ。
2. （みなもと）物事ものごとの起源きげん。
3. （みなもと）日本人にほんじんの姓せいのひとつ。