permeate in WordNet English dictionary

1. 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"
   permeate  pervade  penetrate  interpenetrate  diffuse  imbue  riddle 
   
2. pass through
   "Water permeates sand easily"
   percolate  sink in  permeate  filter 
   
3. penetrate mutually or be interlocked
   "The territories of two married people interpenetrate a lot"
   interpenetrate  permeate