New Revised Standard Version
So when he came, he went up to him at once and said, “Rabbi!” and kissed him.

Contemporary English Version
Judas walked right up to Jesus and said, "Teacher!" Then Judas kissed him,

New American Bible
He came and immediately went over to him and said, “Rabbi.” And he kissed him.

Douay-Rheims Bible
And when he was come, immediately going up to him he saith: Hail, Rabbi! And he kissed him.

And when he was come, immediately going up to him he saith: Hail, Rabbi! And he kissed him.

Master.

Mark 12:14 Who coming, say to him: Master, we know that thou art a true speaker and carest not for any man; for thou regardest not the person of men, but teachest the way of God in truth. Is it lawful to give tribute to Caesar? Or shall we not give it?

Isaiah 1:3 The ox knoweth his owner, and the ass his master's crib: but Israel hath not known me, and my people hath not understood.

Malachi 1:6 The son honoureth the father, and the servant his master: if then I be a father, where is my honour? and if I be a master, where is my fear: saith the Lord of hosts.

Matthew 23:8-10 But be not you called Rabbi. For one is your master: and all you are brethren. . . .

Luke 6:46 And why call you me, Lord, Lord; and do not the things which I say?

John 13:13,14 You call me Master and Lord. And you say well: for so I am. . . .

John 20:16 Jesus saith to her: Mary. She turning, saith to him: Rabboni (which is to say, Master).