CD
音楽用円盤
解説 Definition
音楽やデータをデジタル形式で記録する小型の光ディスク。日常会話では特に音楽アルバムの媒体を指す。
A small optical disc on which music or computer data is stored digitally and read by a laser. In everyday contexts, it often means a physical music album in this format rather than digital files or streaming media.
覚え方のコツ Memory Tip
CDはcompact「小型の」とdisc「円盤」の頭文字です。日本語でも定着していますが、英語ではbuy an album on CD「アルバムをCDで買う」、play a CD「CDを再生する」、a CD collection「CDコレクション」が典型表現です。複数形はCDsとなり、通常は文字を一つずつ発音します。
CD is formed from the initials of compact disc: compact means small and disc means a flat, round object. The full form provides a factual memory hook for the familiar Japanese loanword. Learn it through common music expressions: buy an album on CD, play a CD, and have a large CD collection. The preposition on is important when naming the format, as in “The album is available on CD.” The plural is CDs, without an apostrophe, and the abbreviation is normally pronounced as the two separate letter names, “C-D.”
例文
I bought her new album on CD.
彼女の新しいアルバムをCDで買った。
He has a large collection of jazz CDs.
彼はジャズのCDをたくさん集めている。
Can you play this CD in your car?
車でこのCDをかけてもらえる？
CD の類義語・関連語
CD の語源・成り立ち Etymology
compact discの頭文字を取った略語です。compactは「小型の」、discは「円盤」を意味します。従来のレコードより小さな円盤に、レーザーで読み取れるデジタル情報を記録する媒体として名付けられました。
CD is an initialism of compact disc. Compact describes the format’s relatively small physical size, while disc refers to its flat, circular shape. The name was adopted for an optical medium that stores digitally encoded sound or data in a form read by laser. Because the letters are pronounced separately rather than as a single word, CD is classified as an initialism. Its regular written plural is CDs.
同じレベルの英単語をもっと
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