I. noun Date: 1965 certificate of deposit , II. noun Etymology: compact disc Date: 1979 a small optical disk usually containing recorded music or computer data, III. abbreviation carried down, civil defense, diplomatic corps
CD
Meaning of CD in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012