To Hide Something
To Conceal Something
transitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means hide and the verb vocab version is to hide something or to conceal something.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: Hide your cock (かく)! You have a ton of roosters but you don't want people to know about them, so you gotta hide your cocks. What did you think I was talking about?
コウイチはドアにかぎを掛けた後、そのかぎを隠した。
Koichi locked the door and then hid the key.
水戸黄門は本当の身分を隠して旅をしていた。
Mito Komon concealed his true identity while he was traveling.
秘密の花園への入口は隠されている。
The entrance to the Secret Garden is hidden.