n.

1. 過度的殺傷威力（尤指核武器）

vt.

1. 過度地殺傷
2. 過分；誇張
   The candidate used overkill: he was way ahead in the polls but spent another million dollers on campaign ads.

   那個候選人花得過火了：他已經領先他人卻又花了一百萬元在宣傳費上。

   That's overkill; she dressed up like a princess for the party.

   她打扮得像個公主一樣去參加宴會，真是太誇張了。

n.

1. excessive use, treatment, or action.
2. the amount by which destruction or the capacity for destruction exceeds what is necessary.