attached vs unique

attached

adj
  • Fond of (used with to). 

  • Broadly joined to a stem or stipe, but not decurrent. 

  • In a romantic or sexual relationship. 

  • Of a residential building, sharing walls with similar buildings on two, usually opposite, sides. 

  • Connected; joined. 

unique

adj
  • Particular, characteristic. 

  • Of a rare quality, unusual. 

  • Being the only one of its kind; unequaled, unparalleled or unmatched. 

  • Of a feature, such that only one holder has it. 

noun
  • A thing without a like; something unequalled or unparallelled; one of a kind. 

How often have the words attached and unique occurred in a corpus of books? (source: Google Ngram Viewer )