farther / further

The word farther is used for distances:

  • I ran 3 miles, but my sister ran 5 miles. She ran 2 miles farther than me.
  • Philadelphia is just a two-hour drive away, but Washington is farther – it

    takes about 5 hours to get there.

    You can remember it because farther has the word “far” in it – which refers to physical distance.

    The word further is used for metaphorical distance – such as time or progress – to mean “additional” or “to a greater extent.”

  • He interrupted me before I could say anything further.
  • In order for the research to proceed further, we need more funding.
  • We’ve waited long enough; we need to publish this article without further delay.

    However, the dictionary does say that further can also be used for physical distance:

  • There’s a gas station about ten miles farther/further down the road.

    Finally, the word furthermore means “in addition” and is used to introduce a phrase:

  • I don’t recommend that school. It’s expensive and the teachers are not very good. Furthermore, it has neither a library nor a computer lab.

    The word furthermore is a bit formal, and when speaking everyday English we would usually say “Plus” or “Also” instead.