at or to a greater distance

He went farther down the road.

at or to a more advanced point

They are going no farther in their studies.

at or to a greater degree or extent

The application of the law was extended farther.

more distant or remote than something or some place nearer

the farther side of the mountain.

extending or tending to a greater distance

He made a still farther trip.

Nonstandard . further ( defs. 5, 6 ) .

adverb

closer , nearer

adverb

beyond , further , longer , more distant , more remote , remoter , yon , yondernotes:farther is generally preferred over further when the context is distance in space or time; use farther when talking about physical distance and use further when talking about abstract ideas or extent/degree , yonder