好き means like, love, fondness, or favorite in English. As an adjective, it expresses that you enjoy or have affection for a person, place, or thing. While it means like, it is the most common way to express romantic love (I love you) in Japanese.
That is how Fuguro works. It brings 好き back for review right before you forget it, each time a little later, until it sticks for good. You hear it spoken aloud, and you meet it again in stories you can already read. The first five levels are free.