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Verb: latch on
Usage: informal
  1. Take hold of or attach to
  2. Adopt an idea
    - take up, fasten on, seize on
  3. Understand or realize, usually after some time or initial difficulty
    "She didn't know what her classmates were plotting but finally latched on";
    - catch on [informal], get wise [informal], get onto, tumble [informal], cotton on [informal], twig [Brit, informal], get it, cop on [Brit, informal]

Derived forms: latched on, latches on, latching on

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