How many meanings does the Chinese word "意思" have?

 

First layer of meaning

The meaning of "意思" in Chinese (in its most common sense) 

It refers to the literal meaning of a sentence or action. It also includes translations between different languages.

For example:

The Chinese word "你好" (nǐ hǎo) means "Hello" in English.

The second example:

在中国，喝茶的时候的叩手礼意思就是对冲茶人的尊重。

In China, the hand-tapping gesture when drinking tea signifies respect for the person preparing the tea.

Second meaning:

The Chinese phrase "有点意思" (yǒu diǎn yì yì) means "somewhat interesting", while the Chinese phrase "差点意思" (chā diǎn yìsi) means "almost uninteresting."

For example, "这杯有点意思" (zhè bēi gēi yǒu yìsi) means "this cup is somewhat interesting."

The third layer of meaning:

The Chinese phrase "意思意思" (yìsi yì yì) means an action to curry favor with someone.

比如，中秋到了，你给你老板买点茶叶意思意思

if it's Mid-Autumn Festival, you might buy your boss some tea as a token of appreciation.