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envelope
When used as a noun, "envelope" usually refers to the paper folder for letters. In technical contexts (like aviation or engineering), it refers to the maximum limits of performance. Be careful not to confuse the noun "envelope" with the verb "envelop". While they sound identical, the verb is spelled without the 'e' at the end.
💬Trò chuyện
Victoria, we must push the envelope of our corporate consciousness.
Sir, please just sign the payroll documents before the bank cuts us off.
Ý nghĩa
A flat paper container, typically rectangular with a sealable flap, used for enclosing a letter or document.
"She slipped the invitation into the envelope and sealed it."
A wrapping covering; an outer layer that surrounds or contains something.
"The aircraft's flight envelope defines the limits of its speed and altitude."
To wrap up, cover, or surround something completely.
"A thick mist began to envelope the valley as night fell."