plural of advance guard

plural of guard station

plural of crossing guard

A person who directs vehicular traffic so that pedestrians, especially students, may cross the right of way.

A removable device worn between the upper and lower teeth to prevent their meeting.

plural of occlusal guard

plural of chin guard

A protective guard for a person's chin.

A member of any of several organizations known as Red Guards or Red Guard.

A ceremony during which the soldiers or other officials guarding a major government building or state residence are replaced by a new shift.