Meaning of “envelope” in the English Dictionary

"envelope" in British English

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envelopenoun [ C ]

uk /ˈen.və.ləʊp/ us /ˈɑːn.və.loʊp/

A2 a flat, usually square or rectangular, paper container for a letter

Examples

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  • Instead of throwing the old letter away, they used the name and address on the envelope to find Arlene and deliver it to her.
  • Natural latex is also important as an adhesive in the production of envelopes, labels, sticky tape, and bandages.
  • People often give money in a red envelope as a present at weddings or the New Year.

(Definition of “envelope” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"envelope" in American English

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envelopenoun [ C ]

us /ˈen·vəˌloʊp, ˈɑn-/

a usually rectangular paper container for a letter:

Don’t forget to put a stamp on the envelope.

(Definition of “envelope” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"envelope" in Business English

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envelopenoun [ C ]

uk /ˈenvələʊp/ us WORKPLACE

a flat, usually square or rectangular, paper container for a letter:

a brown/manila envelope
a sealed envelope

a flat, usually square or rectangular, plastic container used for keeping papers in:

The papers were handed to me in a transparent plastic envelope.
push the envelope

to go further than the usual limits by doing something new, dangerous, etc.:

We're really pushing the envelope on this technology; a lot of other companies are just playing catch-up.

(Definition of “envelope” from the Cambridge Business English Dictionary © Cambridge University Press)