latch-on

(v) take hold of or attach to
- The biochip latches onto the genes
(v) adopt
- take up new ideas
fasten on, hook on, seize on, take up,
(v) understand, usually after some initial difficulty
- She didn't know what her classmates were plotting but finally caught on
catch on, cotton on, get it, get onto, get wise, twig, tumble,

fasten on hook on seize on take up catch on cotton on get it get onto get wise twig tumble