All 3 Uses

resignation
in
After Dark, by Murakami
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Eventually she tires of directing her speech outward and closes her mouth in apparent resignation.
Chpt 14 *

resignation = acceptance of something undesired as unavoidable
Hovering around him there seems to be a drawn-out sense of resignation.†
Chpt 4
"Oh, well," Takahashi says, as if resigning himself to the inevitable.†
Chpt 9

Definitions:

(1) (resignation as in: submitted her resignation)
to quit -- especially a job or position; or a document expressing such an act
(2) (resignation as in: accepted it with resignation)
acceptance of something undesired as unavoidable or the lesser of evils
(3) (meaning too rare to warrant focus)
To resign can also more specifically mean to surrender or give up as in "I was clearly going to lose the chess game, so I resigned;" or "She resigned all pretense."