- 입구 [입꾸] (入口, 2급): entrance, entry, gate
- 입원 [이붠] (入院, 2급): hospitalization
- 입장권 [입짱꿘] (入場券, 2급): admission ticket, entrance ticket
- 입학 [이팍] (入學, 2급): admission to a school, entrance into a school
- 입국 [입꾹] (入國, 3급): entry into a country
- 입금 [입끔] (入金, 4급): deposit, payment on account
- 입력 [임녁] (入力, 4급): input, entry
- 입사 [입싸] (入社, 4급): entering a company, joining a company
- 입고 [입꼬] (入庫): warehousing, storage in warehouse, stocking
- 입양 [이뱡] (入養, 6급): adoption
- 가입 (加入, 3급): joining, signing up, entry
- 구입 (購入, 3급): purchase, buying
- 수입 (收入, 3급): earning, income, revenue (=벌이)
- 수입 (輸入, 3급): import
- 신입 [시닙] (新入, 3급): newcomer
- 출입구 [구립꾸] (出入口, 5급): entrance, exit
[Vocab] 입 (入): Enter & Join
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