The points of the compass provide us with an interesting example of one word having two opposite meanings:
A westerly wind is coming from the west.
A person travelling in a westerly direction is going to the west.
The same is true for all the directions. Admittedly, ‘from the west’ appears to be limited to meteorological contexts (see OED examples) but it still seems to me to be unusual for a word to be so diametrically opposed – to itself.
Are there any other words that exhibit this potentially confusing feature?