確認|かくにんkakunin[0]heiban (flat)

JLPT N3approx.Common
Definitions
  1. noun, suru verb, transitive verbconfirmation; verification; validation; review; check; affirmation; identification
    予約よやくは確認かくにんされています。↗
    I have a confirmed reservation.
Conjugation
Dictionary form確認する(かくにんする)
Polite (masu)確認します(かくにんします)
Negative (nai)確認しない(かくにんしない)
polite (masen)確認しません(かくにんしません)
classical zu / nu確認せず・確認せぬ(かくにんせず・かくにんせぬ)
Past (ta)確認した(かくにんした)
polite (mashita)確認しました(かくにんしました)
Past negative (nakatta)確認しなかった(かくにんしなかった)
polite (masen deshita)確認しませんでした(かくにんしませんでした)
Te form確認して(かくにんして)
Potential確認できる(かくにんできる)
Passive確認される(かくにんされる)
Causative確認させる(かくにんさせる)
Causative passive確認させられる(かくにんさせられる)
Conditional (ba)確認すれば(かくにんすれば)
tara確認したら(かくにんしたら)
Volitional確認しよう(かくにんしよう)
polite (mashou)確認しましょう(かくにんしましょう)
Imperative確認しろ(かくにんしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym確かめるたしかめるNeutralA native verb largely interchangeable with 「確認する」; more natural in speech, while 「確認」 leans formal and is common at work and in procedures.
  • Related裏付けうらづけNeutralA noun for the evidence or backing behind a claim, as in 「証言の裏付け」— the proof itself, not the act of checking that 「確認」 names.
  • Related証明しょうめいNeutralShowing something is true with reasons or evidence, as in 「身分証明」; it aims to convince others, while 「確認」 just checks that things are in order.
  • Related立証りっしょうFormalEstablishing a fact by presenting evidence, mostly in law and trials, as in 「犯罪を立証する」; more formal than 「証明」, while 「確認」 is everyday checking.
  • Related論証ろんしょうWrittenProving a proposition holds by logical argument; an academic, logic term. 「確認」 verifies facts and involves no chain of reasoning.
  • Related見極めるみきわめるNeutralJudging after seeing through to the essence or watching to the end, as in 「真偽を見極める」; goes deeper and takes more time than 「確認」.
  • Related突き止めるつきとめるNeutralTracking something down to its source — a cause or culprit, as in 「原因を突き止める」; the point is pinning down the target, while 「確認」 is general checking.
  • Related見定めるみさだめるWrittenA written-style verb for looking carefully and then deciding, as in 「方向を見定める」; it stresses the judgment reached, more than 「確認」 does.
  • Related見届けるみとどけるNeutralWatching something through to the end with your own eyes, as in 「最期を見届ける」; 「確認」 requires no such presence — reading or asking is enough.
  • Related同定どうていWrittenAn academic term for identifying something as one and the same, e.g. a species: 「種を同定する」; in everyday use say 「特定」 or 「確認」.

For checking or verifying something, 「確認」 is the default; in casual speech 「確かめる」 sounds more natural. Use 「証明」 to prove something true, 「立証」 for legal proof, and 「突き止める」 to hunt down a cause or culprit.

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

Japanese definitions
  1. 確たしかに認みとめること。はっきり確たしかめること。
Kanji in this word
English equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android