White
い adjective
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of white? White, of course!
しろい
This has the same reading as the vocab 白 you learned, so you already know the reading. Go you!
その白い犬はうちのペットです。
That white dog is our pet.
白いアスパラガスは中々おいしいですよ。
White asparagus is quite tasty.
白いウサギは赤い目をしていました。
The white rabbit had red eyes.