ちょっと is a versatile adverb meaning a little, a bit, or for a moment. It is frequently used to soften a request, politely decline an invitation, or to get someone's attention (e.g., ちょっと待ってください - please wait a moment).
That is how Fuguro works. It brings ちょっと 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.