Usage patterns
〈事〉の権を握るto hold power/control over something
He holds the power to run that company.
〈事〉の権を得るto obtain the right to do something
He obtained the right to use that land under the new contract.
権を放棄するto relinquish a right or authority
He gave up the authority that came with the position.
権を行使するto exercise a right or authority
Citizens have a duty to exercise that right.
権を主張するto assert a right
She strongly asserted her right.
Expressions
非理法権天right over wrong, law over right, power over law, heaven over power 権利を棄てるabandon one's rights; waive a right; renounce a claim