つくづく (translations)→ appreciatively closely completely dreadfully earnestly fully genuinely somehow strongly surely thoroughly utterly
殺す (translations)→ butcher hold kill murder neutralize pop slay whack zap
殺人 (translations)→ homicide killing
死 (translations)→ demise doom dying end loss nothing tomb
死ぬ (translations)→ collapse dead die go perish
生命 (translations)→ anima life lifeblood vital
絶滅 (translations)→ annihilation extermination extinction
息をひきとる (translations)→ succumb