风俗 (fēngsú) means "customs" or "social conventions." It refers to the traditional practices and habits of a community or region, often paired with 习惯 to form 风俗习惯 (customs and habits).
每个地方都有自己独特的风俗。
měige dìfāng dōu yǒu zìjǐ dútè de fēngsú.
Every place has its own unique customs.
入乡随俗,要尊重当地的风俗。
rù xiāng suí sú, yào zūnzhòng dāngdì de fēngsú.
When in Rome, do as the Romans do; respect the local customs.
这个节日的风俗已经延续了几百年。
zhège jiérì de fēngsú yǐjīng yánxù le jǐ bǎi nián.
The customs of this festival have continued for hundreds of years.