appearance vs entity

appearance

noun
  • That which is not substance, essence, hypostasis; the outward reality as opposed to the underlying reality 

  • The act of appearing or coming into sight; the act of becoming visible to the eye. 

  • Chiefly used by nurses: the act of defecation by a patient. 

  • The act of appearing in a particular place, or in society, a company, or any proceedings; a coming before the public in a particular character. 

  • An instance of someone coming into a court of law to be part of a trial, either in person or represented by an attorney or such like; a court appearance 

  • A thing seen; a phenomenon; an apparition. 

  • The way something looks; personal presence 

  • Apparent likeness; the way which something or someone appears to others. 

entity

noun
  • The existence of something considered apart from its properties. 

  • That which has a distinct existence as an individual unit. Often used for organisations which have no physical form. 

  • Anything about which information or data can be stored in a database; in particular, an organised array or set of individual elements or parts. 

  • The state or quality of being or existence. 

  • An alien lifeform that has no corporeal body. 

  • A spirit, ghost, or the like. 

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