Translation guide
How to express that something is officially recognized, verified, or qualified in Japanese.
certified document
certified public accountant
certified mail
Describing a document, product, or status that has been officially certified by an authority.
Used when something has been officially recognized or accredited by an organization or authority. Common for qualifications, products, and standards.
This product meets certified safety standards.
Often used for systems, processes, or digital certifications (e.g., ISO, security). Implies verification of authenticity or compliance.
Means 'officially recognized' or 'authorized', often used for public or government certification. Less common in everyday contexts.
He is a certified public accountant.
Describing a person who holds a certification or license in a profession.
Indicating that information, a copy, or a translation has been officially verified.
Used for documents, copies, or facts that have been certified as true. Common for 'certified true copy'.
Referring to a postal service that provides proof of mailing or delivery.
認定 (nintei) is for official recognition of qualifications or standards. 認証 (ninshō) is for verification of authenticity or systems. 証明 (shōmei) is for proving facts or documents. Choose based on what is being certified.
certified product
Only certified systems can access.
She is a certified nurse.
A more formal term meaning 'qualified' or 'licensed'. Often used in official contexts.
A certified technician will assist you.
Pattern meaning 'to be qualified/certified in ~'. Use with the field name.
He is certified to teach English.
This is a certified copy.
Means 'already certified/verified'. Often used in technical or digital contexts.
Please submit a certified translation.
The standard term for registered mail, which provides a record of mailing and delivery. Closest to 'certified mail' in the US.
Please send this letter by certified mail.
Specifically 'proof of delivery' service, often combined with 書留 for certified mail with return receipt.
I'll send it by certified mail with return receipt.
認証されたシステム
certified system
certified fact
The direct loanword サーティファイド (sāteifādo) is rarely used and sounds unnatural. Use the appropriate Japanese term instead.