preserver
A preserver is someone or something that helps keep things safe and healthy. It can also mean a person who saves items from being lost or damaged.
When we talk about preservation, it usually means taking care of something so it doesn't get ruined or disappear. A gardener might be a preserver by protecting plants from pests and diseases. In food, preservatives are added to keep them fresh for longer. Even in art, a museum can act as a preserver by keeping historical artifacts safe for future generations.
How common is "preserver"?
It has a balanced usage among all categories: speech, fiction, newspapers and academic texts.
noun
One who preserves.
Real examples of "preserver" in context
Could Jack Have Survived on the Titanic Raft? | MythBusters | Discovery
In addition to this, I'm going to be wearing this cork and canvas replica life preserver, which Adam sewed up, and it's exactly like what they had in the movie.
12:13There were a couple of things, and the first was that we were able to retie the life preserver that Rose was wearing underneath the board.
14:49