Furthest vs. Furtherest
Difference Between Furthest and Furtherest
Most distant in time, space or degree.The furthest known galaxy is about 13 billion light years from Earth.
To, at or over the greatest distance in space, time or other extent.Of all the children in our school, I can run furthest.He lives furthest from the office, so his commute is the longest.
To the greatest degree or extent.This civilisation was the furthest advanced.
(comparatives of `far') most remote in space or time or order;had traveled to the farthest frontierdon't go beyond the farthermost (or furthermost) treeexplored the furthest reaches of spacethe utmost tip of the peninsula
to the greatest degree or extent or most advanced stage (`furthest' is used more often than `farthest' in this abstract sense);went the furthest of all the children in her educationfurthest removed from realityshe goes farthest in helping us
to the greatest distance in space or time (`farthest' is used more often than `furthest' in this physical sense);see who could jump the farthestchose the farthest seat from the doorhe swam the furthest