Among means in the middle of or surrounded by a group of things or people. When you're standing among your classmates in the cafeteria, you're in the group with them, not off to the side watching. When a teacher says “There are several excellent artists among you,” she means some of the students in the class are talented artists.

The word suggests being part of or mixed in with others. A detective might search among the clues for the one that solves the case. A rare flower might grow among ordinary weeds. You might find your lost homework among the papers on your desk.

People sometimes say between for two things and among for more than two, but in modern English between is also used with groups. You might choose between chocolate and vanilla, or between several flavors. You might divide a pizza among your friends, or between two people.

When something happens among a group, it involves the whole group. If there's excitement among the students, everyone in the class feels it. If trust exists among teammates, they all rely on each other.