Italian Phrase
Ho attivato l'allarme?
Meaning
The speaker is asking whether they (or someone implied) have turned on the alarm. It can refer to a home security alarm, a fire alarm, or any alert system that needs to be activated.
When to use
Use this question after you hear a sound, when you are unsure whether the alarm was set, or when you want to confirm that you correctly followed the safety procedure.
✦Grammar Breakdown
Hoattivatol'allarme?
Passato prossimo (ho + participio)
The present perfect in Italian is formed with the auxiliary verb 'avere' (ho) followed by the past participle (attivato) to express a completed action in the recent past.
Contraction l'
The definite article 'il' contracts to 'l'' before a vowel, as in l'allarme.
Verb attivare
Attivare means 'to activate' or 'to turn on' a device, system, or service.
Question intonation
In spoken Italian, a rising intonation at the end of the sentence signals a yes‑no question; the written form adds a question mark.
🗨In Conversation
Ho attivato l'allarme?
Did I activate the alarm?
Sì, l'hai attivato alle otto, proprio prima di uscire.
Yes, you turned it on at eight, just before leaving.
✕Common Mistakes
Sono attivato l'allarme?
Use 'ho' (avere) as the auxiliary for 'attivare', not 'sono' (essere).
Ho attivato il allarme?
The article 'il' contracts to 'l'' before a vowel; 'il allarme' is incorrect.
Ho attivato l'allarme!
A question mark is required for a yes‑no question; an exclamation changes the meaning.
↔Alternatives
Ho acceso l'allarme?
Did I turn the alarm on?
L'allarme è stato attivato?
Has the alarm been activated?
L'allarme è acceso?
Is the alarm on?
Cultural Tip
In Italy many apartments and offices have a central alarm system that is usually activated with a keypad or a remote. When speaking to a colleague or a landlord, keep the tone polite; using the formal 'Lei' (e.g., 'Ha attivato l'allarme?') is more appropriate in professional settings. In casual conversation among friends, the informal version shown above is perfectly natural.

