reallotment vs reallocation

reallotment and reallocation both are nouns.

Word	Noun	Adjective	Verb	Adverb
reallotment	Yes	No	No	No
reallocation	Yes	No	No	No

As nouns, reallotment and reallocation are synonyms defined as:

reallotment and reallocation: a new apportionment (especially a new apportionment of congressional seats in the United States on the basis of census results)

Other synonyms of reallotment include reapportionment.

reallotment (noun)	reallocation (noun)
a new apportionment (especially a new apportionment of congressional seats in the United States on the basis of census results)	a new apportionment (especially a new apportionment of congressional seats in the United States on the basis of census results)
	a share that has been allocated again