CB - What is a CB in football?

CB has 2 meanings. The most common is "Cornerback." See examples of how people use the terms.
In football, a CB is a cornerback, which is a defensive back (DB) that typically guards a wide receiver. The CB's primary job is to defend receivers, which are typically wide receivers (WR), tight ends (TE), and running backs (RBs).

What CB DJ Turner brings to the Cincinnati Bengals - Maize n Brew

2023 NFL Draft prospect profile - Christian Gonzalez, CB, Oregon - Big Blue View

Lions waiving recent seventh-round CB pick despite strong end to preseason

Cam Smith 🔥 Top Cornerback in College Football ᴴᴰ

Why Dallas Cowboys picking CB Eric Scott isn't all that puzzling

Alabama CB Nigel Knott's football career over due to medical concerns

Central Bucks West Football

Bills stock up on defensive backs with Villanova CB Christian Benford in 6th round

Commanders maintain depth, protect comp picks by re-signing CB Danny Johnson - Hogs Haven

B/R Football on X: A debut for Chelsea's new CB 🔵 / X

CB South football impresses in SOL tilt

Los Angeles Rams CB Jalen Ramsey says he is best cornerback in NFL

New Arizona CB coach John Richardson relishing return to college field after flag football detour - Arizona Desert Swarm