yet

(adverb): (usually with negative) Thus far; up to the present; up to some specified time; still
(adverb): Continuously up to the current time; still.
(adverb): At some future time; eventually; still.
(adverb): (after certain copulative verbs, followed by an infinitive) Not as of the time referenced.
(adverb): In addition.
(adverb): (degree) Even.
(conjunction): Nevertheless; however; but; despite that.

He has never yet been late for an appointment; I’m not yet wise enough to answer that; Have you finished yet?
The workers went to the factory early and are striking yet.
The riddle will be solved yet.
He seemed yet to be convinced. — He seemed not yet to have been convinced.
There are two hours yet to go until our destination.