Meaning of biàn:
便
plain; informal; suitable; convenient; opportune; used in 便宜[pian2yi5]
Zhège zuòwèi hěn biàn yí, nǐ kěyǐ qīngsōng mǎi dào.
这个座位很便宜，你可以轻松买到。
This seat is very cheap, you can easily buy it.
Tiānqì zhème hǎo, wǒmen kěyǐ suíbiàn qù guàngguang.
天气这么好，我们可以随便去逛逛。
The weather is so nice, we can just go for a casual stroll.
Zhè jiā shāngdiàn de dìzhǐ duì wǒmen hěn biàn.
这家商店的地址对我们很便。
The location of this store is very suitable for us.
Gòuwù zhòngxīn de dìlǐ wèizhì hěn biàn.
购物中心的地理位置很便。
The shopping center's location is very convenient.
Xiànzài shì kāizhǎn xiàngmù de hǎo biàn.
现在是开展项目的好便。
Now is an opportune time to start the project.
Zhè kuǎn shǒujī zài wǎngshàng mǎi hěn piányí.
这款手机在网上买很便宜。
This phone is very cheap to buy online.
to urinate or defecate
Tā de dùzi téng le hǎo jiǔ, zhōngyú qù biàn le yīxià.
他的肚子疼了好久，终于去便了一下。
His stomach had been hurting for a long time, and he finally went to the bathroom.
equivalent to 就[jiu4]: then; soon afterwards
Rúguǒ nǐ zhǔnbèi hǎo le, biàn kāishǐ.
如果你准备好了，便开始。
If you are ready, then start.
Chī guò wǔfàn hòu, tā biàn qù sànbù.
吃过午饭后，他便去散步。
After lunch, he soon went for a walk.
in that case; even if
Jīntiān xiàyǔ, wǒmen biàn zài jiā kàn diànyǐng ba.
今天下雨，我们便在家看电影吧。
It's raining today, in that case, let's watch a movie at home.
Biàn shì xià yǔ, wǒmen yě yào qù páshān.
便是下雨，我们也要去爬山。
Even if it rains, we still want to go hiking.
used in 便便[pian2pian2]; used in 便嬛[pian2xuan1]
Jí biàn zhè chǎng yǔ xià de hěn jí, wǒmen yīrán chūmén sànbù.
即便这场雨下得很急，我们依然出门散步。
Even though it rained heavily, we still went out for a walk.
Tā biàn kāishǐle xīn de shēnghuó.
他便开始了新的生活。
He then began a new life.
