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Difference between Acquirement, Acquisition, Attainment and Accomplishment

Difference between “By and by” and “By the by”

by and bysoon; before long:

  • They could see the smoke, and by and by a shell would explode in their midst.

by the by —(introductory or parenthetical) in passing; incidentally (also: by the way):

  • By-the-by, Martin—any message from my lady mother?