1: an apple i.e., a green or a red firm fruit whose shape is like a tennis ball but with a crispy edible exocarp (or skin). It's also used to make a wide range of ciders or good ole pruno in the penitentiary.
2: apple as in Apple Inc. i.e., a U.S. of Ayy technology company that is more into hardware business than software. They also compete with other giants like Google, Amazon, Spotify, etc.