envelope

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Envelope Definition & Meaning

1. A flat paper container used for enclosing letters or documents.

Example: I put the invitation in the envelope and sealed it shut.

2. A covering or casing that encloses something.

Example: The seed is protected by a tough envelope.

3. A mathematical curve that is tangent to a family of curves.

Example: The envelope of a set of lines is a curve that touches each line at some point.

4. A boundary or limit of something.

Example: The city's growth was limited by the natural envelope of the river.

5. A measure of the loudness of a sound signal.

Example: The sound engineer adjusted the envelope of the music to make it more dynamic.

Examples of the word envelope used in sentences.

  • The envelope was addressed to my grandmother in England.
  • Can you help me find the envelope with the important documents inside?
  • I found a pile of envelopes on my desk at work.
  • The envelope was sealed tightly so that nothing would fall out.
  • I put the letter in the envelope and mailed it to my friend.
  • She wrote her address on the back of the envelope in neat cursive handwriting.
  • The company sent me an envelope containing important documents that I needed to sign and return.
  • The teacher handed out envelopes with surprise prizes to the students who answered all the questions correctly.
  • Can you please put this letter in the envelope and mail it for me?
  • I received a letter in an old, creased envelope from my grandmother.
  • She was surprised to find a letter inside the envelope with a job offer from her dream company.
  • As soon as I received the envelope, I knew it was from my sister who lives in Paris.
  • The teacher asked us to write our names on the envelopes before submitting our exam papers.
  • Can you please put the invitation card in the white envelope and address it to John?
  • The postman accidentally delivered the envelope to our neighbor, and we had to go and collect it from them.
  • The envelope contained an important document that needed to be delivered ASAP.
  • He scribbled a quick note on the envelope before handing it to the receptionist.
  • The envelope was addressed to him, but he had no idea who could have sent it.
  • I carefully sealed the envelope and placed it in the mailbox.
  • As she opened the envelope, her eyes widened in surprise at what she saw inside.
  • She carefully sealed the envelope and affixed the postage stamp before dropping it in the mailbox.
  • The envelope was addressed to the wrong person, and it took several phone calls to correct the mistake.
  • The envelope was stuffed full of cash, making it a tempting target for thieves and burglars.
  • There was a lingering scent of perfume on the envelope, hinting at a secret admirer or love letter.
  • The envelope contained an official document that needed to be signed and returned promptly.
  • The package was so large that it barely fit inside the envelope, but I managed to seal it shut in the end.
  • Despite the fact that most people use email these days, I still prefer to send physical letters in an envelope.
  • As a graphic designer, I spend a lot of time designing custom envelopes for my clients' invitations and announcements.
  • The mysterious envelope contained only a single sheet of paper with a cryptic message that I couldn't decipher.
  • After handing in my resignation letter, my boss handed me a small envelope containing my final paycheck.
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