concentration vs look

concentration

noun
  • The direction of attention to a specific object. 

  • The proportion of a substance in a whole. 

  • The act, process or product of reducing the volume of a liquid, as by evaporation. 

  • The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water. 

  • A field or course of study on which one focuses, especially as a student in a college or university. 

  • The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm)) 

  • The matching game pelmanism. 

look

noun
  • The action of looking; an attempt to see. 

  • A facial expression. 

  • Physical appearance, visual impression. 

intj
  • Pay attention. 

verb
  • As a transitive verb, often in the imperative; chiefly takes relative clause as direct object. 

  • To make sure of, to see to. 

  • To look at a pitch as a batter without swinging at it. 

  • To give an appearance of being. 

  • To express or manifest by a look. 

  • To face or present a view. 

  • To expect or anticipate. 

  • As an intransitive verb, often with "at". 

  • To search for, to try to find. 

  • To appear, to seem. 

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