A senior member is a person of high rank or seniority in a particular organization. The term can be used to refer to a DOYEN (5 letters), which is an experienced and respected leader in a particular field, an ELDER (5 letters), which is someone who is older and has more experience than others, a DEAN (4 letters), which is a senior official in a college or university, or a doyenne (7 letters), which is a female DOYEN.