English to English

verb (v)

• penetrate mutually or be interlocked(verb.contact)

  Example:
  The territories of two married people interpenetrate a lot.
  

  Synonym:
  permeate
  

  source: wordnet30
• spread or diffuse through(verb.contact)

  Synonym:
  diffuse, imbue, penetrate, permeate, pervade, riddle
  

  source: wordnet30
• To penetrate between or within; to penetrate mutually.(verb)

  source: webster1913
• To penetrate each the other; to penetrate between bodies or their parts.(verb)

  source: webster1913