Simple words:
* bā (八) - eight
* bái (白) - white
* bǎo (宝) - treasure
* bēi (杯) - cup
* bì (笔) - pen
* bīn (宾) - guest
* bō (波) - wave
* bù (不) - not
More complex words:
* bǎo (抱) - to hug
* bào (爆) - to explode
* bèi (被) - to be covered, to be affected
* bì (闭) - to close (eyes, mouth, etc.)
* bìng (病) - illness
* bù (步) - step
* bù (布) - cloth
* bù (部) - department
Words with tones:
* bǎo (保) - to protect (3rd tone)
* bēi (悲) - sad (1st tone)
* bì (避) - to avoid (4th tone)
* bìng (饼) - pancake (3rd tone)
Important Note: In Mandarin, pronunciation is crucial. The same "b" sound can be represented by different pinyin combinations depending on the tone. For example, "bā" (eight) has a different pronunciation from "bǎo" (treasure).
This is just a small sample of words starting with "b" in Mandarin. There are many more words out there!