Definition of latch onto in English:

latch onto

1 informal Attach oneself to (someone) as a constant and usually unwelcome companion: a knack for latching onto people with greater initiative and enterprise
More example sentences
  • He latches on to Dan one evening, all but inviting himself to the man's home for dinner.
  • As a further sub-plot, we have John meeting an Asian woman who latches on to him and takes photographs constantly - she turns out to be an art student, and takes John clubbing, along with her student pals.
  • She gathers her things and leaves the hospital, followed by the Doctor, who in his confused state latches on to someone he recognizes.
1.1Take up (an idea or trend) enthusiastically: the media have latched onto the snappyGeneration Xcatchphrase
More example sentences
  • Frustrated by the lack of quick progress on the ground and fading political support at home, Washington is now latching on to the idea that a quick transfer of power to local troops and politicians would make things better.
  • While latching on to the up-country trend, the industry here found itself wrong-footed and woefully short of male dancing talents.
  • By making the states' rights argument, the Republicans had finally latched on to an idea that resonated with conservatives in the South.
1.2(Of one substance) cohere with (another).
More example sentences
  • Each of these groups of molecules contains a unique fatty acid group and a peptidic head group that latches on to iron ions.
  • Some contain a strip of adhesive amino acids that latch on to their cognate sequences like Velcro.
  • These are specialized molecules that can latch on to antigens and help the rest of the immune system eliminate the foreign particle.
See parent entry: latch

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Word of the day demoralize
Pronunciation: dəˈmôrəˌlīz
verb
cause (someone) to lose confidence or hope; dispirit