認可|にんかninka[1]atamadaka (head-high)

1. noun, suru verb, transitive verbapproval; license; licence; permission
   この計画けいかくはまだ委員会いいんかいから認可にんかされていない。↗

   This plan has not yet been cleared by the committee.

• Synonym許可きょかNeutralThe most common word for permission, by individuals or authorities; 「認可」 is narrower: an authority permitting an action after recognizing a qualification, as in 「設立認可」.
• Synonym承認しょうにんWrittenWritten/formal: approval, but also acknowledging a fact, as in 「承認を得る」; 「認可」 leans toward administrative permission.
• Synonym公認こうにんNeutralOfficial or public recognition, as in 「公認記録」; 「認可」 stresses the administrative approval process.
• Synonymお墨付きおすみつきNeutralColloquial: an endorsement or seal of approval from an authority figure; 「認可」 is formal official approval.
• Synonym許諾きょだくWrittenWritten word for agreeing to someone's request, typically permission to use copyrighted work; 「認可」 is approval granted by an administrative authority.
• Synonym是認ぜにんWrittenWritten word for approving something as correct; 「認可」 is administrative approval.
• SynonymライセンスNeutralLoanword for a license or authorization itself; 「認可」 is the act of approving.
• SynonymＯＫオッケーCasualColloquial: OK, that's fine; 「認可」 is formal administrative approval.
• Synonym許すゆるすNeutralVerb meaning to allow, and also to forgive; 「認可」 is a noun leaning administrative.
• Synonym認めるみとめるNeutralVerb covering recognizing, approving and allowing; 「認可」 is an authority's formal approval.
• Synonym免許めんきょNeutralAn authority lifting a ban on a specific act, or the license itself, e.g. a driver's license; 「認可」 is approving establishment or business after vetting.
• Synonym認許にんきょWrittenRare written word for approval or permission; in everyday use say 「認可」 or 「許可」.
• SynonymパーミッションNeutralLoanword mostly for computer permissions; in daily speech say 「許可」.
• Synonym允許いんきょWrittenRare written word for permission; in everyday use say 「許可」.
• Synonym公許こうきょWrittenWritten word for government permission; in everyday use say 「認可」 or 「許可」.
• Synonym裁可さいかWrittenWritten word for a monarch sanctioning petitions; seldom used today.
• Synonym裁許さいきょWrittenOld written word for a superior's approval; not used in everyday speech.
• SynonymオーソライズNeutralLoanword for formal authorization, including credit-card authorization; uncommon in daily use.
• Synonym聴許ちょうきょWrittenRare written word for granting a request; in everyday use say 「許可」.
• Synonym允可いんかWrittenRare written word for permission; in everyday use say 「許可」.
• Related許しゆるしNeutralPermission, but also forgiveness, as in 「お許しください」; 「認可」 is formal official approval.
• Related授権じゅけんWrittenLegal term for conferring authority; 「認可」 is granting approval or permission.
• Related認定にんていNeutralCertifying a qualification or fact after examination, as in 「認定試験」; 「認可」 is permission to do something.
• Related容認ようにんWrittenWritten word for accepting or tolerating something, often reluctantly; 「認可」 is formal approval.
• Antonym却下きゃっかWrittenWritten antonym: dismissing an application or lawsuit, opposed to 「認可」.
• Antonym拒否きょひNeutralRefusing or rejecting, the opposite of 「認可」's approval.
• Antonym不認可ふにんかWrittenWritten antonym: withholding approval, the direct opposite of 「認可」.

Use 「認可」 when an authority grants permission after recognizing a qualification, as in 「設立認可」. For ordinary permission, 「許可」 is the default. Formal recognition: 「承認」, 「公認」; certification after review: 「認定」; licenses and permits for specific acts: 「免許」, 「ライセンス」. 「許諾」 is consent to a request such as copyright use, 「容認」 reluctant acceptance. Most others are rare written words (認許, 允許, 公許, 裁可, 裁許, 是認, 聴許, 允可, 授権), loanwords (パーミッション, オーソライズ), or casual stand-ins (お墨付き, ＯＫ, 許し, 許す, 認める). Antonyms: 不認可, 却下, 拒否.

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

1. （主おもに公おおやけの機関きかんが）その人ひとに能力のうりょくまたは資格しかくがあることを認みとめて、あることをすることについて許可きょかを与あたえること。