HSK 1
先生
xiānsheng名
teacher; gentleman; sir; mister (Mr.); husband; (dialect) doctor
那个先生是我老师。
Nàge xiānsheng shì wǒ lǎoshī.
That gentleman is my teacher.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
New in the HSK 3.0 word list at level 1.