American English

Definition of latch on phrasal verb from the Oxford Advanced American Dictionary

 

latch on

 phrasal verb
phrasal verb
 
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Phrasal Verbs

latch on (to something)

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latch onto something

(informal)
 
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to understand an idea or what someone is saying It was a difficult concept to grasp, but I soon latched on. He latched on to the truth.

    latch on (to somebody/something)

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    latch onto somebody/something

    (informal)
     
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  1. 1to become attached to someone or something antibodies that latch onto germs
  2. 2to join someone and stay in their company, especially when they would prefer that you not be with them
  3. 3to develop a strong interest in something She always latches on to the latest craze.
See the Oxford Advanced Learner's Dictionary entry: latch on