farther and further
Distance
We can use both farther and further to talk about distance. They mean the same. Further is not generally used in this sense in American English, and is becoming much less common in British English.
- Edinburgh is farther/further away than York.
‘additional’
Further (but not farther) can mean ‘additional’, ‘extra’, ‘more advanced’.
- For further information, see page 6.
- College of Further Education