consent
/kən-ˈsent/
verb
to give assent or approval : agree
to be in concord in opinion or sentiment
consent to being tested
noun
compliance in or approval of what is done or proposed by another : acquiescence
agreement as to action or opinion; specifically : voluntary agreement by a people to organize a civil society and give authority to the government
he shall have power, by and with the advice and consent of the Senate, to make treaties
noun
a judicial decree that sanctions a voluntary agreement between parties in dispute