keep vs transform

keep

noun
  • The state of being kept; hence, the resulting condition; case. 

  • A cap for holding something, such as a journal box, in place. 

  • The food or money required to keep someone alive and healthy; one's support, maintenance. 

  • The main tower of a castle or fortress, located within the castle walls. 

verb
  • To supply with necessities and financially support (a person). 

  • To refrain from freely disclosing (a secret). 

  • To continue in (a course or mode of action); to not intermit or fall from; to uphold or maintain. 

  • To remain edible or otherwise usable. 

  • To remain in a state. 

  • To observe; to adhere to; to fulfill; to not swerve from or violate. 

  • To raise; to care for. 

  • To have habitually in stock for sale. 

  • To act as wicket-keeper. 

  • To enter (accounts, records, etc.) in a book. 

  • To maintain the condition of; to preserve in a certain state. 

  • To restrain. 

  • To maintain (an establishment or institution); to conduct; to manage. 

  • To watch over, look after, guard, protect. 

  • To maintain possession of. 

  • To record transactions, accounts, or events in. 

  • To remain faithful to a given promise or word. 

  • To continue. 

transform

noun
  • A function so produced. 

  • A transform fault. 

  • An operation (often an integration) that converts one function into another. 

verb
  • To undergo a transformation; to change in appearance or character. 

  • To change greatly the appearance or form of. 

  • To subject to the action of a transformer. 

  • To subject to a transformation; to change into another form without altering the value. 

  • To subject (a cell) to transformation. 

  • To change the nature, condition or function of; to change in nature, disposition, heart, character, etc.; to convert. 

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