This is the 870th most frequent Italian word.
segnale
"Segnale" means "signal" or "sign" in English.
In this sentence, 'segnale' is used to refer to a road sign or signal providing instructions to drivers.
Il segnale stradale indica di rallentare.
The road sign indicates to slow down.
Here, 'segnale' represents a transmission or communication signal, such as those used in telecommunications.
Non ho ricevuto nessun segnale dal telefono.
I didn't receive any signal from the phone.
In this case, 'segnale' is employed in a technical context, referring to a synchronization signal.