Summary – Thereby vs Therefore
Although both thereby and therefore are transition words, there is a distinct difference between thereby and therefore. The key difference between thereby and therefore is that Thereby means ‘by that means’ or ‘as a result of that’ whereas therefore means ‘for that reason’ or ‘consequently’. Moreover, therefore is more popular than thereby, both in spoken and written language.
1. “Flier for window display- “A Woman Living Here Has Registered to Vote Thereby Assuming Responsibility of Citizenship” By Unknown – Missouri History Museum (Public Domain) via Commons Wikimedia
2. “Quotes-The-quantum-of-your-” By Salussalus – Own work, CC BY-SA 4.0) via Commons Wikimedia