noun, noun or participle which takes 'suru', transitive verb
defend to the death; desperate defense; stubborn defense
Strongly emphasizes defending something at all costs, often with a connotation of refusing to yield even under extreme pressure. Used for physical positions, principles, rights, or abstract things.
彼らは最後まで城を死守した。
They defended the castle to the death.
選手たちはリードを死守しよう
The players fought desperately to protect their lead.