Elder
Part of speech: adjective
Definition: Comparative of old; greater than another in age or seniority.
Part of speech: noun
Definition: An older person or an older member, usually a leader, of some community. An officer of a church, sometimes having teaching responsibilities The lowest office in the Melchizedek priesthood. One ordained to the office of elder. Male missionary, title for a male missionary; title for a general authority. A priest or priestess in the modern pagan tradition known as Asatru or Heathenry. A small tree of the genus Sambucus having white flowers in a cluster, and purple berries.
Alder
Part of speech: noun
Definition: Any of several trees or shrubs of the genus Alnus, belonging to the birch family.