idioms

  vicious circle (a situation in which the solution to one problem causes another problem, which then causes the first problem again) Taking so many different kinds of medicine to cure an illness will cause you to develop other illnesses, and it can create a vicious circle. Let’s try to …

  under arms (armed and prepared for battle or war) There were nearly a thousand men under arms in this area. The country has over a million soldiers under arms.   envocabulary.com

  under a cloud (under suspicion; not trusted) Mike has been under a cloud since the money disappeared. He left his job under a cloud. (depressed, discouraged, sad) Ever since his wife left him, he has been under a cloud.   envocabulary.com

  Uncle Sam  It comes from the abbreviation “US.” (The United States or its people) We pay $20, 000 in tax to Uncle Sam. This country is almost totally dependent on Uncle Sam for protection.   envocabulary.com

  line of sight (line of direct vision) There is a tall building that obstructs our line of sight. She was trying to place herself directly in my line of sight.   envocabulary.com