Quick answer
Através de most literally crosses a space or barrier; por meio de states a method or instrument with maximum precision.
A reliable test is to identify the job of the word before translating from English.
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What each word does
através de
through or across
Use através de for movement from one side to another, or figuratively through an intermediary.
por meio de
by means of
Use por meio de for the instrument, method, or resource used to achieve something.
How to choose
- através de: Choose através de if the sentence points to movement from one side to another, or figuratively through an intermediary.
- por meio de: Choose por meio de if the sentence points to the instrument, method, or resource used to achieve something.
Examples
A luz entrou através da janela.
The light came through the window.
O pagamento foi feito por meio do aplicativo.
The payment was made through the application.
Common trap
Figurative através de is established in current usage, but formal prose often prefers por meio de when no crossing is involved.
Practice it in context
Pick one sentence from your real life and write it twice: once with através de, then once with por meio de. If both versions feel possible, name the meaning shift.
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