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train of thought
![train of [thought] definition and meaning](https://cdn.langeek.co/photo/44932/original/?type=jpeg "train of [thought] definition and meaning")
What is the origin of the idiom "train of thought" and when to use it?
The idiom "train of thought" originated from the idea that thoughts can be linked together like a series of train cars connected on a track. It was first used in the early 16th century and has since become a common metaphor for the flow of one's ideas or mental processes. This expression is used to describe the sequence of connected thoughts or ideas that run through a person's mind as they think about a particular topic or problem.
Example
The interruption broke his train of thought, and he lost his place in the presentation.
Controlling your train of thoughts not only makes you more productive and effective in your work, it has other, more important benefits as well.
I lost my train of thought while giving the presentation and couldn't remember the next point.
The speech meandered so much that it was hard to follow the speaker's train of thought.
His notes were scrappy and disorganized, making it hard to follow his train of thought.
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