In Mandarin Chinese, 二 (Pinyin: èr 🔊) means “two” or “second”. Two is considered a lucky number in Chinese culture: “good things come in pairs”.
二 is as (or even twice as) straightforward as 一. Note that the upper stroke is shorter than the lower. Rather predictably, the Chinese hand sign for “two” is two extended fingers (index and middle).
There are other hanzi with the same meaning: 貳 (traditional) and 贰 (simplified), mainly used for financial purposes. The two horizontal strokes are still there, albeit well hidden.
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