Question 1 · Quick check
envelope
/ˈɛnvə(ˌ)ləʊp/
noun
Türkçe translations
Translating…
In plain English
- 01
noun
A flat paper container used for a letter.
- 02
noun
Extra detailA bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.
Examples
Did you put a stamp on the envelope?
Make sure you've signed the cheque before sealing the envelope.
At a glance
Sits at B1 on the CEFR scale
- Senses
- 5
- Parts of speech
- 1
- Citations
- 5
- Synonyms
- 3
Also pronounced
- /ˈɑn-/
- /ˈɑ̃və(ˌ)ləʊp/
Deep Dive
noun
Extra meaningsSomething that envelops; a wrapping.
A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.
A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects.
More examples
In contextWho has torn the envelope open?
push the envelope
They have no internal or external support structure, being simply a fabric bag (or envelope) filled with a lighter than air gas. Inside the envelope are one or more "ballonets", or smaller bags, which help maintain the envelope's shape.
Related
Quick test
Two questions on this entry. Nothing is scored.
Practise this properly in the app, where the word comes back before you forget it.
Nearby
Origin
noun
PIE word *h₁én From French enveloppe. The engineering sense is derived from flight envelope. The verb is from the noun.