private corporation vs close corporation

private corporation and close corporation both are nouns.

Word	Noun	Adjective	Verb	Adverb
private corporation	Yes	No	No	No
close corporation	Yes	No	No	No

As nouns, private corporation and close corporation are synonyms defined as:

private corporation and close corporation: a corporation owned by a few people; shares have no public market

Other synonyms of private corporation include closed corporation, privately held corporation.

private corporation (noun)	close corporation (noun)
a corporation owned by a few people; shares have no public market	a corporation owned by a few people; shares have no public market