help
The rescuers were just able to make out a call for help from underneath the rubble.
The country's call for help in tracking down the criminal saw police forces all over the world leap into action.

SMART Vocabulary: related words and phrases

Helping and co-operating
abet
accommodative
any port in a stormidiom
assist
assist with something
attend
bridge
carry
errand of mercyidiom
facilitate
facilitation
financial assistance
give someone a leg upidiom
leg
recourse
relief
run errandsidiom
share a platformidiom
sponsor
start (something) off