noun
seal; sealed closure
Refers to a seal or sealed closure on an envelope, package, container, or similar item. Common in set patterns such as 封をする, 封がしてある, and 封を切る.
封をした封筒を机の上に置いた。
I put the sealed envelope on the desk.
この瓶はまだ封がしてある。
This bottle is still sealed.
封を切らずに返送してください。
Please return it without breaking the seal.
Means a seal or the act of sealing something, often more formal, official, or figurative than the simple noun 封.
Means hermetic or airtight sealing; it emphasizes preventing air, liquid, or contents from escaping.
A loanword for a sticker or adhesive seal; it may be decorative or labeling, while 封 focuses on sealing or closure.
Sino-Japanese noun using the on-yomi reading ふう of 封. The kanji is conventionally associated with sealing or closing; no additional etymology is specified.