Furthest vs. Furtherest: What's the Difference?
"Furthest" is the superlative form of "far" used for both physical and metaphorical distances, while "furtherest" is an uncommon and non-standard variant.
Furthest and Furtherest Definitions
Furthest
Most distant in degree, time, or space
That's the furthest thing from my mind. They explored the furthest reaches of space.
Furtherest
Furthest
Furthest
To the greatest extent or degree
Went the furthest of all the children in her education.
Furthest
At or to the most distant point in space or time
He swam the furthest.
Furthest
Most distant in time, space or degree.
The furthest known galaxy is about 13 billion light years from Earth.
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Furthest
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.
Furthest
To the greatest degree or extent.
This civilisation was the furthest advanced.
Furthest
At the greatest distance; farthest.
Furthest
(comparatives of `far') most remote in space or time or order;
Had traveled to the farthest frontier
Don't go beyond the farthermost (or furthermost) tree
Explored the furthest reaches of space
The utmost tip of the peninsula
Furthest
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 education
Furthest removed from reality
She goes farthest in helping us
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Furthest
To the greatest distance in space or time (`farthest' is used more often than `furthest' in this physical sense);
See who could jump the farthest
Chose the farthest seat from the door
He swam the furthest
