"riddle" in the noun sense
1. riddle, conundrum, enigma, brain-teaser
a difficult problem
2. riddle
a coarse sieve (as for gravel)
"riddle" in the verb sense
1. riddle
pierce with many holes
"The bullets riddled his body"
2. riddle
set a difficult problem or riddle
"riddle me a riddle"
3. riddle, screen
separate with a riddle, as grain from chaff
4. permeate, pervade, penetrate, interpenetrate, diffuse, imbue, riddle
spread or diffuse through
"An atmosphere of distrust has permeated this administration"
"music penetrated the entire building"
"His campaign was riddled with accusations and personal attacks"
5. riddle
speak in riddles
6. riddle
explain a riddle
Source: WordNet® (An amazing lexical database of English)
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