封筒の端を切るの英語

seal an envelope

cut the envelope along the fold

adhesive envelopes

seal (up) an envelope

the mark that is used in sealing something, called 'kirifu-'

a paper knife used for opening envelopes

a method used to an envelope

an envelope with a transparent panel that reveals the address on the enclosure

slit an envelope with a knife

seal [open] an envelope

the outer cover of a double envelope

slit an envelope with a knife

to push a camera shutter release repeatedly

the act of of tucking the dangling ends of an obi under itself

Stick a stamp on the envelope.

I ripped the envelope open.

a letter under a separate cover

I have to put a stamp on the envelope.

I have to put a stamp on the envelope.

Please join the two ends of the tape together.

breast the tape

Who has torn the envelope open?

The envelope had not been properly sealed up [stuck down].