train of thought

• train of thinking, train of thoughts

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train of thought (plural trains of thought)

1. The flow of thinking.

   Synonyms: thought path, thread of thought

   • 2018, Alex Turner, “One Point Perspective”, in Tranquility Base Hotel & Casino, performed by Arctic Monkeys:

     Did Mr. Winter Wonderland / Say, "Come 'ere, kid, we really need to talk"? / Bear with me, man, I lost my train of thought

• line of thought
• stream of consciousness
• thought process