合あい印いんあいいんじ字FuriganaAudioMeanings1nounverification seal; tally markA mark or seal used to verify that two items match or belong together, often by aligning halves of a stamp or seal across two documents or objects.契けい約やく書しょに合あい印いんを押おす。Break this sentence down in the analyzerI stamp a verification seal on the contract.割わり符ふには合あい印いんが付つけられている。Break this sentence down in the analyzerA tally mark is placed on the tally stick.