Illustration: In a small repair office, an employee secretly alters a printed inspection photograph of a cracked bicycle frame. With a fine retouching brush, they cover the dark crack so the photographed frame appears undamaged.

JLPT N1suru verbLevel estimated by Bebop

改かいざん

kaizan

to falsify, to tamper with

Example sentences

彼かれは報告書ほうこくしょを改かいざんした。
He doctored his report.
Tatoeba · CC BY 2.0 FR · Source
トムは報告書ほうこくしょを改竄かいざんした。
Tom falsified the reports.
Tatoeba · CC BY 2.0 FR · Source
各大名家かくだいみょうけが自家じかの正当性せいとうせい、高貴性こうきせいを主張しゅちょうするために系図けいずを改竄かいざんするなどした時代じだいの風潮ふうちょうがあった。
It was the order of the day that each family of a feudal lord tampered with its genealogical chart in order to claim its authenticity and nobility.
KFTT corpus (NICT), Wikipedia · CC BY-SA 3.0 · Source

Kanji in 改

改reformation; changeOnカイKunあらためる・あらたまる

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