All 3 Uses

breach
in
Middlemarch
(Auto-generated)

Curiously enough, his pain in the affair beforehand had consisted almost entirely in the sense that he must seem dishonorable, and sink in the opinion of the Garths: he had not occupied himself with the inconvenience and possible injury that his breach might occasion them, for this exercise of the imagination on other people's needs is not common with hopeful young gentlemen.†
Chpt 3

breach = break or penetrate
And to have entered into the nature of diseases would only have added to his breaches of medical propriety.†
Chpt 5 *

breaches = breaks or penetrates
"I'll bid a pound!" said Mr. Powderell, in a tone of resolved emotion, as of a man ready to put himself in the breach.†
Chpt 6

breach = break or penetrate

Definitions:

(1) (breach)
break or failure
(2) (meaning too rare to warrant focus)
A less common meaning of breach is the rising and breaking out of the water by a whale.