1.(comparatives of `far') most remote in space or time or order;
had traveled to the farthest frontier
2.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
3.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