Envelop means “surround” or “cover completely.” The most natural patterns are be enveloped in and be enveloped by.
In active voice, envelop usually takes a direct object: Fog enveloped the town. In passive structures, both enveloped in and enveloped by are common. In often focuses on the surrounding state, while by highlights the thing doing the surrounding.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use envelop directly with the thing being surrounded.
In commonly introduces fog, silence, darkness, smoke, or similar surroundings.
By focuses on the force, object, or substance creating the enclosure.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
By usually appears in passive structures.
✕ Smoke enveloped by the city. ✓ Smoke enveloped the city.Envelop often takes a direct object.
✕ Mist enveloped around the hills. ✓ Mist enveloped the hills.In describes the surrounding condition; by emphasises the source or agent.
✓ The valley was enveloped in darkness.Envelop is a verb. Envelope is the noun for a paper container.
✕ Put the letter in the envelop. ✓ Put the letter in the envelope.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Both are standard. In often sounds more natural with states like silence, fog, or darkness.
Yes. For example: “Smoke enveloped the valley.”
Yes, when in introduces the wrapping material: “They enveloped the gift in paper.”
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