裏うら付づける

う

ら

づ

け

る

Common wordFreq.FrequencyTop 50,000

裏付ける · ichidan verb

Meanings

ichidan verb, transitive verb

support; back up; substantiate; corroborate

Used for providing evidence, data, or logical backing to a theory, claim, or statement. Common in academic, journalistic, and formal contexts.

〈事こと〉を裏うら付づけるto substantiate or back up a claim, theory, or statement
この実じっ験けん結けっ果かが彼かれの理り論ろんを裏うら付づけている。
This experimental result supports his theory.
〈事こと〉を裏うら付づける証しょう拠こevidence that corroborates something
犯はん行こうを裏うら付づける証しょう拠こが見みつかった。
Evidence corroborating the crime was found.
〈事こと〉が〈事こと〉を裏うら付づけるone fact corroborates another
新あたらしいデータが以い前ぜんの調ちょう査さ結けっ果かを裏うら付づけた。
The new data corroborated the results of the earlier survey.

証しょう明めいN3
証明する means to conclusively prove something (often mathematically or legally), while 裏付ける means to provide supporting evidence without necessarily settling the matter completely.
実じっ証しょう
実証する emphasizes demonstrating something empirically through experiment or data, whereas 裏付ける more broadly means to back up a claim with any kind of supporting evidence.
立りっ証しょう
立証する is a legal/formal term for establishing proof (as in a court case), while 裏付ける is used more generally in journalism and everyday argument.
支ささえるN3
支える means to support physically or emotionally (like a person or structure), whereas 裏付ける specifically means to support a claim or theory with evidence.

否ひ定ていN3
否定する means to deny or refute a claim, the opposite of 裏付ける, which means to support it with evidence.

裏うら切ぎるN3
裏切る shares the kanji 裏 with 裏付ける but means 'to betray', a completely unrelated meaning from providing supporting evidence.

裏うら付づけるUsage58%
Standard kanji spelling; high-frequency in news and formal writing.
裏うらづけるUsage41%
search-only kanji form
Search-only variant with づ in kana; not a standard written form.
うらづけるUsage1%

Compound of 裏 (ura, 'back, reverse side') + 付ける (tsukeru, 'attach'). The idea is attaching backing or support to something, hence 'to substantiate'.