JMdict: 1480360

反古にする 【ほごにする】

  1. [exp,vs-i] to throw away as useless; to scrap
  2. [exp,vs-i] to make null and void; to renege; to annul; to revoke
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
Anti- ハン, ホン, タン, ホ そ.る, そ.らす, かえ.す, かえ.る, -かえ.る 3
Old ふる.い, ふる-, -ふる.す 2