A "key member" refers to an important or essential person in a group or team. They play a significant role and their presence is crucial for the smooth functioning and success of the group. Full definition
Players are emerging as key members of the squad, the older generation are being kept together while the younger members are as promising as they come. (justarsenal.com)
The program fosters the development of a new generation of researchers interested in policy - relevant topics and willing to become key members of a bilateral and global research network. (aaas.org)
You can listen to interviews with key members of the organization, below. (prp.fm)