/ ˌrezɪgˈneɪʃn; NAmE / noun
1.
[ U , C ] the act of giving up your job or position; the occasion when you do this :
a letter of resignation
There were calls for her resignation from the board of directors.
Further resignations are expected.
2.
[ C ] a letter, for example to your employers, to say that you are giving up your job or position :
to offer / hand in / tender your resignation
We haven't received his resignation yet.
3.
[ U ] patient willingness to accept a difficult or unpleasant situation that you cannot change :
They accepted their defeat with resignation.
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WORD ORIGIN
late Middle English : via Old French from medieval Latin resignatio(n-) , from resignare unseal, cancel, from re- back + signare sign, seal.