介入 /kaiɲɯː/ VerbEnglishinterveneไทยเข้าแทรกแซงExample警察が[仲裁に入る](ちゅうさいにはいる)— of: The police had to intervene when the crowd became aggressive.The police had to intervene when the crowd became aggressive.「介入する」はやや公式な響きですが、この文脈では「仲裁に入る」が最も自然です。