[adjective] [before noun; not gradable] Elder is used for people in the same family.an elder sister/brother/son/daughter.There were two British prime ministers called William Pitt, and the father is usually known as William Pitt the elder. [before noun]An elder statesman/stateswoman is an older person who is respected and asked for advice because of their past experience, esp. in politics.
ELDER
Meaning of ELDER in English
Cambridge English vocab. Кембриджский английский словарь. 2012