CD vs time deposit

CD and time deposit both are nouns.

Word	Noun	Adjective	Verb	Adverb
CD	Yes	No	No	No
time deposit	Yes	No	No	No

As nouns, time deposit is a hyponym of CD; that is, time deposit is a word with a more specific, narrower meaning than CD:

CD: a debt instrument issued by a bank; usually pays interest
time deposit: a certificate of deposit from which withdrawals can be made only after advance notice or at a specified future date

CD (noun)	time deposit (noun)
a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser	a certificate of deposit from which withdrawals can be made only after advance notice or at a specified future date
a debt instrument issued by a bank; usually pays interest