Close observation
Tail and close observation are semantically related. In some cases you can use "Tail" instead a noun phrase "Close observation".
Tail
Tail noun - A body of employees or servants who accompany and wait on a person.
Close observation and tail are semantically related. You can use "Close observation" instead a noun "Tail".
Cite this Source
Tail and Close observation. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/close_observation/tail
Close observation & Tail. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/close_observation/tail>.
Tail or Close observation. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/close_observation/tail.
Google Ngram Viewer shows how "close observation" and "tail" have occurred on timeline