What does 中古 mean?
中古 is a Japanese noun meaning “used, second-hand” in English. It can also be translated as “Middle Ages (in Japan esp. Heian period)” depending on context. It is written as 中古 in kanji, ちゅうこ in hiragana, and chuuko in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
その中古の冷蔵庫はひどい代物だった。
That used refrigerator was a real dog.