Also, at one's ease. Comfortable, relaxed, unembarrassed, as in I always feel at ease in my grandmother's house. The related idiom put at ease means "make comfortable, reassure," as in I was worried that the letter would not arrive in time, but the postmaster put me at ease. [1300s] For the antonym, see ill at ease.
In a relaxed position in military ranks. The phrase is often used as a command for troops standing at attention to relax, as in At ease, squadron. The command stand at ease is slightly different. A British military dictionary of 1802 described it as standing with the right foot drawn back about six inches and one's weight put on it. An American version is to stand with one's feet slightly apart and the hands clasped behind one's back.
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.