latch on

Verb

• understand, usually after some initial difficulty
  • She didn't know what her classmates were plotting but finally caught on
    

• adopt
  • take up new ideas
    

• take hold of or attach to
  • The biochip latches onto the genes
    

Related words

• Synonyms: 
  catch on , get wise , get onto , tumble , cotton on , twig , get it , take up , fasten on , hook on , seize on