IPA: /prɪˈzɜːrvə/
KK: /prɪˈzɜrvər/
A person or thing that keeps something safe or maintains it in good condition.
The preserver carefully sealed the jars of fruit to keep them fresh for the winter.
Preserver → It is formed from "pre-" (meaning before) and "servare" (meaning to keep or save). The word "preserver" refers to someone or something that keeps or saves something before it is lost or damaged.
Think of someone who 'keeps' ('servare') something 'before' it is lost ('pre-') — that's why a preserver is someone who saves or maintains something.