hikikomori /hi-kē-kō-mōˈri or -möˈri/

1. (in Japan) complete withdrawal from society for a prolonged period
2. A person, usu an adolescent male, who does this

• Master of the Queen's Musick
• Master of the Revels
• Master of the Rolls
• Master of the Sentences
• Master of the Temple
• master page
• master pages
• master-passion
• masterpiece
• masterpieces
• master race
• master races
• masters
• masters-at-arms
• master sergeant
• master sergeants
• mastership
• masterships
• mastersinger
• mastersingers
• master-slave manipulator
• masters of the schools
• masterstroke
• masterstrokes
• master-switch