How the word "まちがい（間違い）" is translated into English
この答えは間違いです。
間違いを恐れないでください。
名前に間違いはありませんか。
"まちがい（間違い）" is in the lesson "Philosophy" (Level 44), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.
