el principio

beginning, start

"Al principio parecía fácil; luego apareció el formulario."

At first it seemed easy; then the form appeared.

principle

"Tengo un principio firme, excepto cuando cuesta dinero."

I have a firm principle, except when it costs money.

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Your turn

Write a sentence with principio in it, whatever's on your mind.

It doesn't have to be perfect