One who conserves, preserves or protects something.
A person appointed by a court to manage the affairs of another; similar to a guardian but with some powers of a trustee.
A professional who works on the conservation and restoration of objects, particularly artistic objects.
An officer in charge of preserving the public peace, such as a justice or sheriff.
A judge delegated by the pope to defend certain privileged classes of persons from manifest or notorious injury or violence, without recourse to a judicial process.
A sentry, watch, or guard.
A unique string of characters recognised by a computer program for processing in a special way; a keyword.
A sentinel crab.
A sign of a health risk (e.g. a disease, an adverse effect).
To post as guard.
To post a guard for.
To watch over as a guard.