The kanji 廃 fundamentally conveys the idea of ruin, abandonment, abolishment, or being discarded. It implies something that is no longer in use, in a state of decay, or has been put to an end. It suggests a loss or a state of something being rendered useless or ineffective.

・On-yomi (音読み): はい (hai) ・Kun-yomi (訓読み): すた（れる） (suta(reru))

⚫︎ 廃墟（はいきょ） Translation: ruins; remains ⚫︎ 廃止（はいし） Translation: abolition; repeal; discontinuance ⚫︎ 廃車（はいしゃ） Translation: abandoned car; scrapped car

The kanji 廃 is a 形声文字 (keisei moji), a phono-semantic compound. The phonetic component is 巿 (fu or futsu) which gives a hint of the pronunciation, and the semantic component is 广 (are, or extended building). Together, the character depicts a building 广 that has been neglected or abandoned and is now in decay. The character thus evolved to represent the idea of something being discarded or rendered useless.