知道 vs 认识

Know a fact vs. know a person: 知道 facts, 认识 acquaintances.

知道

zhīdào ㄓㄉㄠˋ

to know; to become aware of; also pr. zhi1dao5

他知道这件事。

He knows about this.

认识認識

rènshi ㄖㄣˋ ㄕˊ

to know; to recognize; to be familiar with

我很高兴认识你。

I'm very glad to meet you.

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