Japanese Style Door, Door
noun
The kanji and the word are exactly the same. That means they share meanings as well.
と
This has the same reading as the kanji you learned, meaning you know the reading!
戸をノックした。
I knocked on the door.
うちのネコは戸をカリカリします。
My cat scratches the door.
この戸は立てつけがわるい。
This door opens and closes hard.