a.

1. 年龄较大的
   Her elder daughter is in college.

   她的长女在上大学。

2. 从前的
3. 资格老的；地位高的
   An elder educator is due to lecture at 3 tomorrow afternoon.

   一位资深教育家定于明天下午三点演讲。

n.

1. 年龄较大者[S1]
   You are my elder by five years.

   你比我大五岁。

2. 长者，前辈[P]
   In some things you must trust to your elders.

   有些事，你得信赖你的长者。

3. 前人，祖先[P]
4. 元老，长老[C]

n.

1. 【植】接骨木[C]

adj.

n.

1. (one's elder) a person of greater age than one.
2. a leader or senior figure in a community or tribe.
3. an official in the early Christian Church, or of various Protestant Churches and sects.

n.