Fragrance
Aroma
This is the noun version of 香, making it have the same meaning, fragrance.
かおり
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: The fragrance you smell is somebody's 顔 (かお). Just imagine smelling the fragrance of a bunch of people's faces. Yum!
どの香りを付けるかを決めるのは難しいですね。毎朝短くとも一時間はそれに時間を費やします。
It is hard to choose which perfume to wear. It takes me at least an hour every morning.