black belt

A student may only test for their black belt after at least five years of training.

He got his black belt at the age of 10.

Then he led the other black belts out of the room.

It took five years for me to become a black belt.

"My black belt probably had something to do with it."

They are ready to aim for black belt after three to five years.

Do you think you're going to get a black belt overnight?

In this case, the student will instead receive the black belt.

He earned his black belt in only 4 years of training.

Should a requirement for the job be a black belt.