poser vs rebus

poser

noun
  • Someone who, or something which, poses; a person who sets their body in a fixed position, such as for photography or painting. 

  • A poseur; someone who affects some behaviour, style, attitude or other condition, often to impress or influence others. 

  • A particularly difficult question or puzzle. 

  • Someone who asks a question or sets a problem. 

rebus

noun
  • An arrangement of pictures on a coat of arms which suggests the name of the person to whom it belongs. 

  • An arrangement of pictures, symbols, and/or words representing phrases or words, especially as a word puzzle. 

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