noun
disc
dihsk
noun
1
A flat, round, thin object or shape.
"The moon appeared as a bright disc in the night sky."
2
A round, flat piece of plastic used to store music, video, or data, such as a CD or DVD.
"He put the disc into the drive and pressed play."
3
A cushion-like piece of cartilage between the bones of the spine.
"She slipped a disc while lifting a heavy box."
How to Use Disc
Learner’s notesIn plain EnglishA round, flat object — used for anything from CDs to parts of the spine.
UK vs US
British English generally uses "disc" (compact disc, slipped disc), while American English tends to use "disk" for computer storage, though usage overlaps.
Easily confused with
Common pairings
slipped disc
compact disc
Word Forms
disced past tense, discs singular
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The moon appeared as a bright _____ in the night sky.
Etymology
From French disque, from Latin discus, from Ancient Greek diskos ("disk, quoit, platter").