International monitors are keeping watch on the election process. Doctors watched the old man's heartbeat on a monitor. The new findings suggest that women ought to monitor their cholesterol levels. The CIA were monitoring (= secretly listening to) his phone calls. United Nations monitors were prevented from entering the area. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.