What does the word deviation mean?

Usage examples for deviation

  1. This last fact I learned from other information, not having visited that place; as it would have been a deviation from my route, too considerable for the importance of the object. – Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson by Thomas Jefferson
  2. His remark is this: In the use of who as an interrogative, there is an apparent deviation from regular construction- it being used without distinction of case; as, 'Who do you speak to? – The Grammar of English Grammars by Goold Brown
  3. More will be gained by the observance of the ordinary laws of health, than by any foolish deviation, founded on ignorance. – The American Woman's Home by Catherine E. Beecher and Harriet Beecher Stowe
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