impression vs knowledge

impression

noun
  • The vivid perception of something as it is experienced, in contrast to ideas or thoughts drawn from memory or the imagination. 

  • set of copies of a publication printed at one time having the same content, layout, pagination, etc. 

  • The indentation or depression made by the pressure of one object on or into another. 

  • An online advertising performance metric representing an instance where an ad is shown once. 

  • A vague recalling of an event, a belief. 

  • An outward appearance. 

  • A print on paper from a wood block, metal plate, etc. 

  • An impersonation, an imitation of the mannerisms of another individual. 

  • The first coat of colour, such as the priming in house-painting etc. 

  • The overall effect of something, e.g., on a person. 

verb
  • To manipulate a blank key within a lock so as to mark it with impressions of the shape of the lock, which facilitates creation of a duplicate key. 

knowledge

noun
  • Awareness of a particular fact or situation; a state of having been informed or made aware of something. 

  • Sexual intimacy or intercourse (now usually in phrase carnal knowledge). 

  • Intellectual understanding; the state of appreciating truth or information. 

  • The fact of knowing about something; general understanding or familiarity with a subject, place, situation etc. 

  • Justified true belief 

  • The total of what is known; all information and products of learning. 

  • The deep familiarity with certain routes and places of interest required by taxicab drivers working in London, England. 

  • Something that can be known; a branch of learning; a piece of information; a science. 

  • Familiarity or understanding of a particular skill, branch of learning etc. 

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