preserver

/P R IY0 Z ER1 V ER0/
noun
  1. 1

    One who preserves.

  2. 2

    A life preserver.

  3. 3

    A person who refinishes furniture.

  4. 4

    A person who prepares preserves of fruit or preserved meats.

Source: https://en.wiktionary.org/wiki/preserver