Evidence
Proof
noun
The kanji and the word are exactly the same. That means they share meanings as well.
Since this word is made up of a single kanji, it should use the kun'yomi reading. When learning the kanji, you didn't learn that reading, so here's a mnemonic to help you with this word:
Your relentless search for evidence has finally uncovered the existence of a car sheep (あかし)! It's a bizarre hybrid, having a car's body but a sheep's head and legs. "Ah, car sheep! I've finally found the evidence proving you're real!"
友情の証として、このふじ山のキーホルダーをあげます。
As proof of our friendship, I'll give you this Mt. Fuji keychain.
あいつの身の証を立てるのはそうかん単なことじゃないかもしれない。
It might not be easy to show the evidence of his innocence.
君の両親だって本当は叱りたくないけど、叱っているんだよ。愛の証だよ。
Your parents tell you off, even though they don't actually want to. It's proof of their love.