cd
cd — noun
1. a round plastic disc that stores music, computer files, or other information. Yo
a round plastic disc that stores music, computer files, or other information. You use it by putting it into a CD player or a computer, and a laser reads the data from its surface.
Priya put the new CD into her player and sat down to listen.
article + noun: the CD, her player — possessive before player
The librarian found an old CD with photos from the school trip.
Rohan's favourite CD was scratched, so the music jumped in places.
Aiko borrowed three CDs from the library and played them in her car.
This old computer still has a drive that can read CDs.
- compact disc
the full, formal term — rarely used in everyday conversation
- disc
a more general word that can also refer to DVDs or vinyl records
文法句型
a / the / one CD
CD (singular) → CDs (plural)
on CD (medium format, no article)
用法筆記
CD is usually written in capital letters. The word stands for 'compact disc', but the full form is rarely used in everyday speech. A CD is the disc itself, not the machine that plays it — that machine is called a CD player or CD drive.