This is the 870th most frequent Chinese word.
证明
"Proof" or "to prove."
In this sentence, "证明" functions as a noun meaning "proof" or "evidence." It refers to documentation or confirmation used to validate something.
她带来了身份证作为身份的证明。
She brought her ID card as proof of her identity.
Here, "证明" acts as a noun, "verification" or "certificate." It describes an official document affirming the validity of a claim or statement.
我需要去公证处开具一份收入证明。
I need to get an income verification from the notary office.
Here, "证明" is used as a verb meaning "to prove" or "to demonstrate." It indicates that the subject has provided evidence or reasoning to support a statement, fact, or theory.