parcel vs packet

parcel and packet both are nouns.

Word	Noun	Adjective	Verb	Adverb
parcel	Yes	No	Yes	No
packet	Yes	No	No	No

As nouns, packet is a hyponym of parcel; that is, packet is a word with a more specific, narrower meaning than parcel:

Other hyponyms of parcel include bundle, sheaf, pack.

As nouns, parcel and packet are synonyms defined as:

Other synonyms of parcel include bundle, package.

parcel (noun)	packet (noun)
the allotment of some amount by dividing something	a small package or bundle
a wrapped container	a boat for carrying mail
a collection of things wrapped or boxed together	(computer science) a message or message fragment
an extended area of land	a collection of things wrapped or boxed together

parcel (verb)	packet (verb)
make into a wrapped container
cover with strips of canvas
divide into parts