These are the same word in different grammatical forms.
Envelop is the verb and envelope, the noun. They are pronounced differently: envelop as ‘en-VEL-up’ and envelope as ‘ON-vel-ope.’
As you may know, one kind of envelope is the paper container that you use to send small things by "snail mail" (physical mail). However, any (relatively) thin layer that surrounds something can be called an envelope:
The Earth is surrounded by an envelope of air.
Envelope can also be used to describe the layer of chocolate surrounding a candy—or any other thin covering that wraps all around something; it is not used in reference to wearing clothing.
Envelop is the verb:
As the drowning man became tired, the water enveloped him.
As shown here, for the verb, the substance covering something does not need to be a thin layer; it means “to completely cover, or submerge, (something).”
More Examples of How to Use "Envelop" in a Sentence
- I need to envelop this package in bubble wrap before I send it.
- The darkness enveloped me as I walked through the forest.
- Jacky wrapped her arms around him, enveloping him in her warmth and love.
- Fog enveloped the highway, making it too dangerous to drive.
- The mail clerk enveloped the package in bubble wrap before sending it.
More Examples of How to Use "Envelope" in a Sentence
- I opened the envelope to find a $10 bill and a note from my daughter.
- I put the letter in an envelope and mailed it.
- The envelope was addressed to Mr. Johnson and postmarked on March 5, 2020.
- The invitation came in a small brown envelope with a wedding logo on it.
- A crisp white envelope sits atop a stack of papers on my desk; all I need now is the courage to mail it to her.