N5 — outside your level filter
〜くん
〜くんkunN5casual
an informal title for a boy or a junior man — never upward
健くん、宿題終わった？
ken-kun, shukudai owatta?
Ken, have you finished your homework? casual
田中くん、この資料を確認してください。
tanaka-kun, kono shiryou o kakunin shite kudasai.
Tanaka, please check this document. neutral
All examples2
a boy's or junior man's name-suffix — used by someone senior or equal
健くん、宿題終わった？
ken-kun, shukudai owatta?
Ken, have you finished your homework? casual
田中くん、この資料を確認してください。
tanaka-kun, kono shiryou o kakunin shite kudasai.
Tanaka, please check this document. neutral
How it's formed1
Notes
Direction matters: a teacher or manager calls a junior man くん, but that
junior addresses them back with さん or a title, never くん.
junior addresses them back with さん or a title, never くん.