LAO

lao(1)

lao(2)

lao(3)

老 = old

The nouns for many special persons contain the character 老.

老板 = lao(3)ban(3) = boss

老师 = lao(3)shi(1) = teacher

老公 = lao(3)gong(1) = husband

老婆 = lao(3)po(-) = wife

老外 = lao(3)wai(4) = foreigner

lao(4)