relinquishment
US /rɪˈlɪŋ.kwɪʃ.mənt/
UK /rɪˈlɪŋ.kwɪʃ.mənt/
1.
sự từ bỏ
the act of giving up something such as a responsibility, claim, or possession:
:
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How do you negotiate the relinquishment of native title rights when you do not know what they are?