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1. Pierce with many holes
   "The bullets riddled his body"
    
2. Set a difficult problem or riddle
   "riddle me a riddle"
    
3. Separate with a riddle, as grain from chaff
   - screen
    
4. Spread or diffuse through
   "His campaign was riddled with accusations and personal attacks";
   - permeate, pervade, penetrate, interpenetrate, diffuse, imbue
    
5. Speak in riddles
    
6. Explain a riddle

1. A difficult problem
   - conundrum, enigma, brain-teaser
    
2. A coarse sieve (as for gravel)

Derived forms: riddled, riddles, riddling

Type of: baffle, beat, bedevil, befuddle, bewilder, communicate, confound, confuse, discombobulate, dumbfound, figure out, flummox, fox, fuddle, get, gravel, intercommunicate, lick, mystify, nonplus, penetrate, perforate, perplex, pierce, pose, problem, puzzle, puzzle out, screen, sieve, sift, solve, stick, strain, stupefy, throw, unriddle, vex, work, work out

Encyclopedia: Riddle, Idaho Riddle, ID Riddle Riddle, Indiana Riddle, Oregon Riddle, Or Riddle, OR