Its the same thing although in northern UK we say package if we expect it to be a big item and parcel for something smaller for example my mum says you got a parcel I would know it’s something relatively small like in a Jiffy bag but if she said you have a package I’d know it was a box of some kind (I think that’s quite a colloquial usage though it could differ in other regions ) 😊

These two essentially has same meaning. Package is most often heard words in the US. But I have seen people who are from Eastern part of US also use parcel.

The word "parcel" has these meanings: As a noun: 1. an object wrapped up to form a small bundle; a package 2. a distinct, continuous piece of land As a verb: 3. Do divide into portions or to give out in portions The word "package" has these meanings: As a noun: 1. A bundle packed and wrapped or put into a box: a parcel 2. A container into which something is packed 3. A group or combination of related parts offered as a unit As a verb: 4. to make or put into a package 5. to design and manufacture a package for (something; a product) 6. to combine or offer (related units) into or as a unit 7. to present (something) in a way that disguises its true nature As an adjective: 8. offered as a unit combining a number of goods and services "Package" and "parcel" are synonyms only with meaning #1 as a noun. They are NOT synonyms with any other meaning.

In the U.S., the word "package" is more common. But sometimes we hear "parcel."

Thank you Selena!