window envelope

noun

: an envelope having an opening through which the address on the enclosure is visible

Word History

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of window envelope was in 1914

Rhymes for window envelope

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Browse Nearby Words

window-efficiency ratio
window envelope
window fixture
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Cite this Entry

“Window envelope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/window%20envelope. Accessed 22 May. 2025.

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