IPA: /dɪˈstrɔɪ.ər/
KK: /dɪˈstrɔɪər/
A type of fast warship designed for combat, equipped with weapons like guns and missiles, or a person or thing that causes destruction.
The navy deployed a destroyer to protect the fleet from enemy submarines.
Destroyer → It is formed from "de-" (meaning down or away) and "struere" (meaning to build). The word "destroyer" refers to one who tears down or takes apart what has been built.
Think of someone who takes something 'down' ('de-') that has been 'built' ('struere') — that's why a destroyer is someone who tears things apart.