緘かん

noun

seal; seam

Refers to the physical seal or seam of an envelope or similar closure. Often used in formal or written contexts.

See also: 緘する (かんする)

• 封ふう筒とうの緘かんを切きる。

  I cut the seal of the envelope.

noun

writing on a seal

Specifically the characters or words written across the seal of an envelope, such as 〆 or 緘. Rare standalone use; more often encountered in compound or explanatory contexts.

• 封ふう筒とうの緘かんの部ぶ分ぶんに「〆」と書かく。

  Write '〆' on the seal part of the envelope.