Dreye權威釋義|mercy

n.

慈悲，憐憫；仁慈，寬容[U][（+on）]
The commander showed mercy to the prisoners of war.
司令官對戰俘十分憐憫。
仁慈行為，善行[C][（+for）]
【口】幸運，僥倖[S]
It was a mercy that the whole family survived the earthquake.
這次地震中一家人都倖免於難，真是不幸中之大幸。
救濟，救難
Distributing food among the homeless was an act of mercy.
發配食物給無家可歸的人是救苦救難的行為。

at the mercy of

受……所支配；任……處置；在……掌握中
She was at the mercy of her cruel husband.
她任憑殘酷的丈夫擺佈。
A sailor is at the mercy of the weather.
水手受到天氣的擺佈。

have mercy on

without mercy

同義:

n.仁慈，寬容

反義:

n.「慈悲；寬容；善行」的反義字

同義參見:

以上來源於：《英漢大辭典》

n.

(pl. mercies)

exclam.

archaic used to express surprise or fear.

ME: from OFr. merci ‘pity’ or ‘thanks’, from L. merces, merced- ‘reward’, in Christian L. ‘pity, favour, heavenly reward’.

以上來源於：《簡明牛津英語詞典》