What does "boundary corner" mean?

A defensive position, responsible for covering the deep half of the field on the boundary side.

What is a synonym for "boundary corner"?

Common synonyms include: cornerback.

noun

noun ·Rare ·Advanced level

Noun

1
A defensive position, responsible for covering the deep half of the field on the boundary side.
"The field corner and boundary corner line up on number 1 strong and number 1 weak, respectively."
2
The corner where two boundary lines meet.
"The traditional method of searching for a boundary corner is with the circle, or spiral, search, which has been recommended by (government) for some time."

"The field corner and boundary corner line up on number 1 strong and number 1 weak, respectively."