How to say "leak" in Japanese

• リークCommon
  noun, suru verb, transitive verbA loanword for the leak of information, such as when confidential material reaches the media or the public. It fits news stories about documents or data escaping from a company or government.
• 漏洩ろうえいCommon
  noun, suru verb, transitive verb, intransitive verbA noun for the leaking, disclosure, or divulging of secrets and confidential information. It carries a formal nuance and appears in written or official contexts, such as reports on data leaks or unauthorized disclosure.
  漏ろうえいはすぐに食くいとめる必要ひつようがある。↗

  The leak needs to be stopped immediately.
• 漏るもるJLPT N1approx.Common
  godan verb, intransitive verbA verb for something physically leaking, such as water or another liquid escaping from a pipe or a container. This is your word for a leaky faucet.
  雨あめが降ふると必かならず屋根やねから雨水あまみずが漏もる。↗

  Every time it rains, the roof leaks.
• 漏出ろうしゅつCommon
  noun, suru verb, transitive verb, intransitive verbA formal noun for the act of something leaking out; leakage. It is at home in written or technical descriptions rather than in everyday conversation.
• 流れ出るながれでるCommon
  ichidan verb, intransitive verbA verb for liquid or other material flowing, streaming, or pouring out. It stresses movement rather than a defect, so it is only loosely matched to 'leak' and often better rendered as 'flow out'.
  切きれた血管けっかんから血ちがどくどくと流れ出ながれでた。↗

  Blood poured from the cut vein.

For leaks of information or secrets use 「リーク」 or 漏洩; for something physically leaking use the verb 「漏る」; 漏出 is a formal noun for leakage in written contexts; and 「流れ出る」 describes flowing or pouring out.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• リークleak (of information)
• 漏洩ろうえいleak (of secrets, information, etc.)
• 漏るもるto leak
• 漏出ろうしゅつleaking out
• 流れ出るながれでるto flow out
• 流れ出すながれだすto flow out
• 漏れもれleak
• 漏りもりleak
• 漏入ろうにゅうleaking in
• 水漏れみずもれ(water) leak
• 流出りゅうしゅつoutflow (of people, capital, etc.)
• 漏らすもらすto let out (a secret)