G4738–στῆθος–stēthos

And the publican, standing afar off, would not lift up so much as his eyes unto heaven, but smote upon his breast, saying, God be merciful to me a sinner.

στῆθος stēthos “breast”

And all the people that came together to that sight, beholding the things which were done, smote their breasts, and returned.

στήθη stēthē “breasts”

He then lying on Jesus' breast saith unto him, Lord, who is it?

στῆθος stēthos “breast”

Then Peter, turning about, seeth the disciple whom Jesus loved following; which also leaned on his breast at supper, and said, Lord, which is he that betrayeth thee?

στῆθος stēthos “bosom”

And the seven angels came out of the temple, having the seven plagues, clothed in pure and white linen, and having their breasts girded with golden girdles.

στήθη stēthē “chests”