numskull or numbskull/ʹnumskul/ noun

• worktop
• work to rule
• work-to-rule
• work up
• world
• world-beater
• world-class
• World Cup
• world fair
• world-famous
• worldling
• worldly
• worldly-wise
• world music
• world power
• world-shaking
• world view
• world war
• world-weary
• worldwide
• World Wide Web
• WORM
• worm
• wormcast
• worm-eaten