Philips Reference Libraries
A Compact Disc, or CD, is an optical disc used to store digital data although it was originally developed to store sound recordings exclusively. Audio CDs have been available commercially since October 1982 and were popular until around 2010 when other digital forms took over. The standard CD can hold up to 80 minutes of uncompressed audio. There are also Mini CDs that hold up to 24 minutes...
- A person who stands up for something, as contrasted to a bystander who remains inactive.
- One of the upright handlebars on a traditional Inuit sled.