"monitoring" in the noun sense
1. monitoring
the act of observing something (and sometimes keeping a record of it
"the monitoring of enemy communications plays an important role in war times"
"monitoring" in the verb sense
1. monitor, supervise
keep tabs on keep an eye on keep under surveillance
"we are monitoring the air quality"
"the police monitor the suspect's moves"
2. monitor
check, track, or observe by means of a receiver
Source: WordNet® (An amazing lexical database of English)
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