concern vs insight

concern

noun
  • A worry; a sense that something may be wrong; an identification of a possible problem. 

  • The placement of interest or worry on a subject. 

  • The expression of solicitude, anxiety, or compassion toward a thing or person. 

  • That which affects one’s welfare or happiness. A matter of interest to someone. 

  • A business, firm or enterprise; a company. 

  • Any set of information that affects the code of a computer program. 

verb
  • To engage by feeling or sentiment; to interest. 

  • To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to. 

  • To make somebody worried. 

insight

noun
  • Intuitive apprehension of the inner nature of a thing or things; intuition. 

  • Knowledge (usually derived from consumer understanding) that a company applies in order to make a product or brand perform better and be more appealing to customers 

  • A sight or view of the interior of anything; a deep inspection or view; introspection; frequently used with into. 

  • An extended understanding of a subject resulting from identification of relationships and behaviors within a model, context, or scenario. 

  • Power of acute observation and deduction 

  • An individual's awareness of the nature and severity of one's mental illness. 

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