chad vs pregnant chad

chad and pregnant chad both are nouns.

Word	Noun	Adjective	Verb	Adverb
chad	Yes	No	No	No
pregnant chad	Yes	No	No	No

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

chad: a small piece of paper that is supposed to be removed when a hole is punched in a card or paper tape
pregnant chad: a chad that has been punched or dimpled but all four corners are still attached

Other hyponyms of chad include dimple, dimpled chad, hanging chad, swinging chad, tri-chad.

chad (noun)	pregnant chad (noun)
a small piece of paper that is supposed to be removed when a hole is punched in a card or paper tape	a chad that has been punched or dimpled but all four corners are still attached