Meanings1familiar; close; friendlyIntimate with each other without having quarrels.Examples from Lessons (3)우리 모두 사이좋게 방송 보자.Let's all watch the broadcast amicably.Read the Lesson 앞으로도 서로 안부를 물어 주시면서 사이좋게 지내요.Let's continue to check in on each other and get along well.Read the Lesson 그럼 우리 같이 사이좋게 커피를 마시러 들어가 봅시다.Then let's go in together to enjoy some coffee amicably.Read the Lesson Grammar in These Examples-게Level 3-ly (adverbial form)-아/어Level 1Informal ending-요FoundationsPoliteness marker