noun
retaliation
rih-tal-ee-AY-shun/rɪˌtæliˈeɪʃn/
Action taken against someone in return for harm or an offense.
The second shove is retaliation for the first hostile push.

Etymology
The underlying idea is a return of like for like: repayment matching what was received. Retaliation could originally repay good or evil, but now usually means a response to injury or insult.
In context
The bombs did great damage to wire and trenches, and naturally enemy retaliation was prompt and heavy whenever we fired.
More examples
- She spreads rumors about him in retaliation for his insults.
- Fear of retaliation keeps some witnesses from speaking up.
- The country raises tariffs in retaliation for new trade restrictions.
Forms
retaliation · retaliations
retaliate verb — To harm someone in return for harm.
retaliatory adjective — Intended to punish someone for an offense.
Similar words
- revenge
- Emphasizes a personal desire to hurt someone for a wrong.
- retribution
- Emphasizes punishment viewed as deserved, rather than simply striking back.
- reprisal
- Often describes an organized response to a hostile act.