To save for later use, sometimes by the use of a preservative.
To protect an environment, heritage, etc.
To remain unchanged during a process
Wilderness where human development is prohibited.
A jam or thick syrup made from fruit.
To keep in possession or use.
To employ by paying a retainer.
To hold back (a pupil) instead of allowing them to advance to the next class or year.
To keep in one's pay or service.
To hold secure.