among

preposition

• Denotes a mingling or intermixing with distinct or separable objects. (See Usage Note at amidst.)

  "How can you speak with authority about their customs when you have never lived among them?"

• Denotes a belonging of a person or a thing to a group.

  "He is among the few who completely understand the subject."

• Denotes a sharing of a common feature in a group.

  "Lactose intolerance is common among people of Asian heritage."