gain vs interest

gain

verb
  • To draw into any interest or party; to win to one's side; to conciliate. 

  • To increase. 

  • To reach. 

  • To be more likely to catch or overtake an individual. 

  • To put on weight. 

  • To run fast. 

  • To acquire possession of. 

  • To have or receive advantage or profit; to acquire gain; to grow rich; to advance in interest, health, or happiness; to make progress. 

adv
  • Tolerably; fairly. 

  • Suitably; conveniently; dexterously; moderately. 

noun
  • The thing or things gained. 

  • The factor by which a signal is multiplied. 

  • The act of gaining; acquisition. 

  • A square or bevelled notch cut out of a girder, binding joist, or other timber which supports a floor beam, so as to receive the end of the floor beam. 

adj
  • Easy; tolerable; handy, dexterous. 

  • Honest; respectable; moderate; cheap. 

interest

verb
  • To engage the attention of; to awaken interest in; to excite emotion or passion in, in behalf of a person or thing. 

noun
  • A great attention and concern from someone or something; intellectual curiosity. 

  • An involvement, claim, right, share, stake in or link with a financial, business, or other undertaking or endeavor. 

  • The price paid for obtaining, or price received for providing, money or goods in a credit transaction, calculated as a fraction of the amount or value of what was borrowed. 

  • Condition or quality of exciting concern or being of importance. 

  • Any excess over and above an exact equivalent 

  • The persons interested in any particular business or measure, taken collectively. 

  • Something or someone one is interested in. 

  • Attention that is given to or received from someone or something. 

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