The Collaborative International Dictionary of English v.0.48:
Far \Far\, adv.
1. To a great extent or distance of space; widely; as, we are
separated far from each other.
2. To a great distance in time from any point; remotely; as,
he pushed his researches far into antiquity.
3. In great part; as, the day is far spent.
4. In a great proportion; by many degrees; very much; deeply;
Who can find a virtuous woman ? for her price is far
above rubies. --Prov. xxxi.
As far as, to the extent, or degree, that. See As far as,
(a) At a great distance, absolutely or relatively.
(b) Distant in sympathy or affection; alienated. "But now,
in Christ Jesus, ye who some time were far off are
made nigh by the blood of Christ." --Eph. ii. 13.
Far other, different by a great degree; not the same; quite
Far and near, at a distance and close by; throughout a
Far and wide, distantly and broadly; comprehensively. "Far
and wide his eye commands." --Milton.
From far, from a great distance; from a remote place.
Note: Far often occurs in self-explaining compounds, such as
far-extended, far-reaching, far-spread.