Close observation
Monitor and close observation are semantically related. In some cases you can use "Monitor" instead a noun phrase "Close observation".
Monitor
Monitor noun - An ironclad vessel built by Federal forces to do battle with the Merrimac.
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Synonyms for Monitor
Close observation and monitor are semantically related. You can use "Close observation" instead a noun "Monitor".
Cite this Source
Monitor and Close observation. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/close_observation/monitor
Close observation & Monitor. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/close_observation/monitor>.
Monitor or Close observation. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/close_observation/monitor.
Google Ngram Viewer shows how "close observation" and "monitor" have occurred on timeline