開かい封ふう

noun, noun or participle which takes 'suru', transitive verb

opening; breaking the seal

Used for opening something that has been sealed or closed, especially letters, envelopes, parcels, official documents, or packages. As a suru verb, the object is marked with を.

• 封ふう筒とうを開かい封ふうする前まえに、宛あて名なを確かく認にんしてください。

  Before opening the envelope, please check the addressee.

• この書しょ類るいは本ほん人にん以い外がい、開かい封ふう禁きん止しです。

  This document must not be opened by anyone other than the person concerned.

noun, noun or participle which takes 'suru', transitive verb

unboxing; opening a product package

A product-focused extension, common for newly bought goods and online content such as 開封動画. It emphasizes opening the packaging for the first time rather than merely opening a container.

• 新あたらしいスマホを家いえに帰かえってすぐ開かい封ふうした。

  I unboxed the new smartphone as soon as I got home.

• 彼かの女じょは化け粧しょう品ひんの開かい封ふう動どう画がを投とう稿こうしている。

  She posts unboxing videos of cosmetics.

noun

unsealed mail

A limited postal or administrative noun use referring to mail that is not sealed or is treated as open. In ordinary conversation, people usually describe the state more explicitly, such as 封をしていない郵便物.

• 郵ゆう便びんの説せつ明めいで「開かい封ふう」は、封ふうをしていない郵ゆう便びん物ぶつを指さすことがある。

  In postal explanations, 開封 can refer to mail that is not sealed.