腐朽 (fǔxiǔ) — use 腐败 (fǔbài) when emphasizing moral corruption, while 腐朽 (fǔxiǔ) focuses on physical decay or rot.

Think of 腐 (fǔ) as 'rot' because it looks like something decomposing. The left radical '肉' (meat) suggests something that can decay, while '败' (bài) means 'defeat'. Visualize a defeated piece of meat left out too long, illustrating both moral and physical decay.

Be careful not to use 腐败 in overly casual contexts, as it often carries serious implications related to ethics and governance. Common collocations include '腐败现象' (corruption phenomena) and '腐败分子' (corrupt individuals). Tone mistakes can lead to misunderstandings, so practice the third and fourth tones.

As an HSK Level 6 word, 腐败 connects with other terms related to ethics and society. Focus on its application in formal discussions about politics, economics, or social issues, and contrast it with related words like '清廉' (qīnglián - integrity).

Corruption is a significant issue in contemporary China, often discussed in the context of government reforms and anti-corruption campaigns. The term 腐败 is frequently seen in media reports about political scandals.

Learners often confuse 腐败 with similar-sounding words, such as 失败 (shībài - failure). For example, saying '他的计划腐败了' (tā de jìhuà fǔbài le) is incorrect; it should be '他的计划失败了' (his plan failed).