W: (v) supervise [Related to: supervision] (keep tabs on; keep an eye on; keep under surveillance) "we are monitoring the air quality"; "the police monitor the suspect's moves"
S: (v) 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"
W: (n) monitoring [Related to: monitor] (the act of observing something (and sometimes keeping a record of it)) "the monitoring of enemy communications plays an important role in war times"
W: (n) supervision [Related to: supervise] (management by overseeing the performance or operation of a person or group)