frank vs unsharp

frank

adj
  • honest, especially in a manner that seems slightly blunt; candid; not reserved or disguised. 

  • unmistakable, clinically obvious, self-evident 

noun
  • The notice on an envelope where a stamp would normally be found. 

  • A hot dog or sausage. 

  • The grey heron. 

  • A pigsty. 

  • Free postage, a right exercised by governments (usually with definite article). 

verb
  • To exempt from charge for postage, as a letter, package, or packet, etc. 

  • To shut up in a frank or sty; to pen up; hence, to cram; to fatten. 

  • To place a frank on an envelope. 

  • To send by public conveyance free of expense. 

unsharp

adj
  • dulled or intentionally blunt. 

  • out of focus; blurry. 

verb
  • To sharpen (an image) by creating a blurred ("unsharp") negative as a mask, and then combining that mask with the original. 

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