How to Say "tip-off" in Spanish
The Spanish word for “tip-off” is “soplo” — B2 level.
English → SpanishB2
nounB2informal
secret information given to police

Examples
La policía detuvo al sospechoso gracias a un soplo.
The police arrested the suspect thanks to a tip-off.
Recibimos un soplo sobre el paradero del tesoro.
We received a tip about the treasure's whereabouts.
Fue un soplo anónimo lo que inició la investigación.
It was an anonymous tip-off that started the investigation.
The 'Source' of Information
When saying who gave the tip, use the preposition 'de': 'un soplo de un informante'.
Informal usage
Mistake: “Using 'soplo' in a strictly academic or formal report.”
Correction: In formal contexts, use 'información confidencial' or 'denuncia'.
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