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From Middle English furthermore, forthermore, forthermar (also as forther mo), equivalent to further +‎ -more.


  • (UK) IPA(key): /ˈfɜː(ɹ).ðə(ɹ).mɔː(ɹ)/
  • (file)


furthermore (not comparable)

  1. In addition; besides; what's more; used to denote additional information.
    • 2013 July-August, Philip J. Bushnell, “Solvents, Ethanol, Car Crashes & Tolerance”, in American Scientist:
      Surprisingly, this analysis revealed that acute exposure to solvent vapors at concentrations below those associated with long-term effects appears to increase the risk of a fatal automobile accident. Furthermore, this increase in risk is comparable to the risk of death from leukemia after long-term exposure to benzene, another solvent, which has the well-known property of causing this type of cancer.
    He skillfully took charge of the event, and furthermore, he stayed late after it to clean up.