WordWeb Online

1. Up to the present time
   "I have yet to see the results"; "details are yet to be worked out"
    
2. Used in negative statement to describe a situation that has existed up to this point or up to the present time
   "the sun isn't up yet"; "as yet he hasn't called";
   - so far, thus far, up to now, hitherto, heretofore, as yet, til now, until now
    
3. To a greater degree or extent; used with comparisons
   "an yet more interesting problem"; "a yet sadder tale";
   - even, still
    
4. Within an indefinite time or at an unspecified future time
   "he longed for the flowers that were yet to show themselves";
   - in time
    
5. Used after a superlative
   "the largest drug bust yet";
   - so far
    
6. Despite anything to the contrary (usually preceding a concession)
   "he was a stern yet fair master";
   - however, nevertheless, withal [archaic], still, all the same, even so, nonetheless, notwithstanding, at the same time, even if, be that as it may

1. However at the same time; in spite of that
   "Emma wished he would be less pointed, yet could not help being amused";
   - nevertheless

Encyclopedia: Yet