'Lawyer' in the Bible

Then one of them, which was a lawyer, asked him a question, tempting him, and saying,

And, behold, a certain lawyer stood up, and tempted him, saying, Master, what shall I do to inherit eternal life?

After five days Ananias the high priest came down with some elders and a lawyer named Tertullus. These men presented their case against Paul to the governor.

Where is the wise? Where is the scribe? Where is the lawyer of this world? Hasn't God made foolish the wisdom of this world?

Bring Zenas the lawyer and Apollos on their journey diligently, that nothing be wanting unto them.