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1. Take hold of or attach to
    
2. Adopt
   - take up, fasten on, hook on, seize on
    
3. Understand, usually after some initial difficulty
   "She didn't know what her classmates were plotting but finally latched on";
   - catch on, get wise, get onto, tumble, cotton on, twig, get it

Derived forms: latching on, latched on, latches on

Type of: adopt, apprehend, compass, comprehend, dig, embrace, espouse, get the picture, grasp, grok [N. Amer], hold on, savvy, sweep up