Nouns

(n)elder, seniora person who is older than you are
(n)elder, elderberry bushany of numerous shrubs or small trees of temperate and subtropical Northern Hemisphere having white flowers and berrylike fruit
(n)elderany of various church officers

Adjectives

(s)elder, older, sr.used of the older of two persons of the same name especially used to distinguish a father from his son“Bill Adams, Sr.”