"alerting" in the noun sense
1. alertness, alerting
a state of readiness to respond
"alerting was indicated by the desynchronization of the EEG"
2. alert, alerting
a warning serves to make you more alert to danger
"alerting" in the verb sense
1. alarm, alert
warn or arouse to a sense of danger or call to a state of preparedness
"The empty house alarmed him"
"We alerted the new neighbors to the high rate of burglaries"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License