1. (

• interpenetrate ,
• permeate ,

) penetrate mutually or be interlocked; "The territories of two married people interpenetrate a lot" ;

2. (

• 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" ;