(organic chemistry) Any chemical entity that is temporarily reacted with a functional group so as to protect it from a subsequent reaction

Safe sex.

(computing) An operational mode of x86-compatible CPUs, in which software can use features such as virtual memory, paging, and safe multitasking.

A title or job description that can only legally be used by persons who have completed a specific training course and/or are members of a particular trade association.

Equipped with a copy protection mechanism.

(law enforcement) Lawful confinement of a person or close supervision of his or her movements, on a voluntary or involuntary basis, by authorities in order to safeguard that person from attack or other dangers.

plural of protecting group

plural of protected title

plural of protected area

(derogatory) A tendency to protect people from perceived injury (such as criticism) by responding with hostility to whomever is held responsible for causing said injury.