yet (Adverb) — Up to the present time. ex. "I have yet to see the results" ex. "details are yet to be worked out"
yet (Adverb) — Used in negative statement to describe a situation that has existed up to this point or up to the present time. ex. "the sun isn't up yet" ex. "as yet he hasn't called"
yet (Adverb) — To a greater degree or extent; used with comparisons. ex. "an yet more interesting problem" ex. "a yet sadder tale"
yet (Adverb) — Within an indefinite time or at an unspecified future time. ex. "he longed for the flowers that were yet to show themselves"
yet (Adverb) — Used after a superlative. ex. "the largest drug bust yet"
yet (Adverb) — Despite anything to the contrary (usually following a concession). ex. "he was a stern yet fair master"
yet (Conjunction) — However at the same time; in spite of that. ex. "Emma wished he would be less pointed, yet could not help being amused"