noun
moment of death; one's last moments
Refers to the very moment someone dies, often used in the context of being present at a loved one's deathbed.
祖父の死に目に会えなかったことが心残りだ。
I regret not being able to be with my grandfather at the moment of his death.
彼は父親の死に目に立ち会った。
He was present at his father's deathbed.
Compound of 死に (continuative form of 死ぬ, 'to die') + 目 ('moment, occasion'). The combination literally means 'the moment of dying'.