rhizoverbBeta
DictionaryenvelopePaper container
noun

envelope

EN-vuh-lope/ˈenvələʊp/

A flat paper covering that contains a letter or document.

The open envelope holds a folded letter beneath its raised triangular flap.

A single open paper envelope viewed from its back, with its triangular flap raised and a blank folded letter partly tucked inside.
Etymology
enOld Frenchin
+velopeOld Frenchto wrap up

The pieces express wrapping something in a cover. A general wrapper became specifically a paper cover for a letter or document; the wrapping verb's deeper ancestry is uncertain.

In context

Sir Gentle’s Stories1:00
stared at the envelope in front of her. The letter inside had arrived 3 weeks ago.
She Showed Up to Federal Interview in Torn Clothes — The Panel Laughed, Until She Opened Her Mouth

More examples

  • Write your return address on the envelope.
  • These envelopes are large enough to hold the documents without folding.
  • He opens the envelope and pulls out a birthday card.

Forms

envelope · envelopes

envelop verb — To surround or cover on all sides.

Similar words

sleeve
Usually open at one end rather than sealed for mailing.
mailer
Often padded or reinforced to protect items during shipping.