A Board
Board, A Plank, Plank
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 uses the kun'yomi reading. You did not learn this reading, so here's a mnemonic to help you:
Who can make good use of various boards? An avid eater (いた)! If you’re an avid eater, you’ll need lots of (cutting) boards to prepare all the delicious food you’re going to eat. This makes boards and eaters the perfect match.
2chの野球板に書き込みをしたんですが、板違いだと言われてしまいました。
I posted some comments on a forum about baseball on 2chan, but I was told it was the wrong board.