thereby Meaning, Definition & Usage

  1. adverb by that means or because of that
    • He knocked over the red wine, thereby ruining the table cloth

WordNet

There*by" adverb
Definitions
  1. By that; by that means; in consequence of that.
    Acquaint now thyself with him, and be at peace; thereby good shall come unto thee. Job xxii. 21.
  2. Annexed to that. "Thereby hangs a tale." Shak.
  3. Thereabout; -- said of place, number, etc. Chaucer.

Webster 1913