ph.

1. 老头子
2. 【口】丈夫；情人
   Me and my old man have been together for ten years now.

   我和男友已经在一起十年了。

3. 【口】父亲
   My old man plays baseball with us every Saturday morning.

   我老爸每星期六早上都跟我们打棒球。

4. 头儿（指老板、船长等）
5. 【口】（招呼用语）老兄

n.

1. an elderly man.
2. (one's old man) informal one's father, husband, or male partner.
3. Brit. informal an affectionate form of address between men or boys.